A generic tag to understand the calculations in a specific case. Please give out a sample illustration and ask a specific question. Ideally should also be accompanied by specific subject tags like "credit-cards", "savings-account", "index-funds" etc.

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Calculating Stock Trading Profits

I buy 100 shares of Company A at $10/share and one month later I buy 100 more shares of Company A at $20/share. If one month later, I sell half of my shares how would I calculate my profit? I ...
2
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1answer
91 views

Unequal Loan Repayments

I am struggling with this question below. Present Value = 100000 Interest =12.25% per annum Number of months = 60 Payments =? Payments increase by 15% per annum. Calculate the ...
2
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1answer
46 views

Calculating return on a series of stock positions with multiple uneven transactions

How can I calculate the return on a series of stock positions with multiple uneven transactions that I can compare to the equivalent buy and hold return over the same period? Random Example: Starting ...
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2answers
4k views

What is the equation for an inflation adjusted annuity held in perpetuity?

What is the equation relating an initial investment, a fixed rate of return, an inflation rate, and a perpetual payment adjusted for that inflation rate?
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1answer
186 views

What are the standard industry practices or disclosures for computing compounded interest on retail deposit accounts in the United States?

I'm seeking to understand how my bank calculates the interest on my various deposit accounts (Money Market, Interest Checking, Savings, Certificate of Deposit) in order to simulate and predict it to a ...
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2answers
24k views

How to determine contractor hourly rate and employee salary equivalents?

I am aware of the general differences between being an employee and being an independent contractor. However, I am unable to easily compare the two when it comes to after-tax compensation. Company ...
2
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2answers
347 views

Calculate the optimum contribution to Provident Fund(PF) account

I am fresh out of college and started working and want to work out how much I should contribute to my Provident Fund account to maximize the benefit from tax deductions. I am from India, so for those ...
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1answer
45 views

Pre- & post-tax calculations for comparing contribution amounts for traditional 401k vs. Roth IRA?

I currently have a rollover IRA which I no longer contribute to and a 401k which I currently contribute to. I would like a Roth account to be more diversified from a tax perspective. I currently put ...
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3answers
3k views

In the event of a corporate spin-off, how can I calculate the correct cost basis for each company's shares?

Consider this example: Siemens is going to have a spin-off (next Monday). If I owned, say, 10,000 shares of Siemens bought at an average price of 80 euros, my cost would be 800,000 euros. In the ...
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2answers
87 views

Division of Proceeds from sale of house

I bought a house ten years ago with a friend and I put down the 20% deposit. We have been fighting for years and recently decided to sell the house. We bought the house as joint tenants with right of ...
13
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1answer
1k views

Is the Social Security retirement benefit calculation based on the last 40 quarters, or overall?

Are Social Security payouts based on the last 40 quarters, or overall earnings? That is: If the last 40 quarters of my working career are lower than these past 40 quarters worth, how does this affect ...
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1answer
97 views

What is the formula for calculating the amount of money I end up with in a given period (salary and compounding effect)?

I'll give a concrete example (couldn't find a similar question): Let's say I have an amount of money M at time t = 0 (first month). Every month, I get a given amount (let's say constant) of R On my ...
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2answers
71 views

Could somebody explain Wikipedia's VAT example calculation to me?

Wikipedia example here. I could not understand why in this example ("With a value-added tax" subsection) the government charges 0.10 = $1 × 10%, but not 0.11 = $1.1 × 10% The manufacturer spends ...
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3answers
66 views

Average cost basis based on total shares held or specific shares sold?

Let's say I bought 1 share in a Vanguard mutual fund each year for 10 years. Its price started at $1 and went up by exactly $1 each year, so the price of the latest share bought is $10. The average ...
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3answers
98 views

Fundamentals of creating a diversified portfolio based on numbers?

There are a number of articles and posts across the internet describing how to diversify your portfolio. But, each claim typically focuses on how to allocate your portfolio rather than describing ...
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2answers
338 views

How does this retirement fund calculator work?

I found a retirement fund calculator on web: Inflation rate: 2% 0% 2% 0% Expected return rate: 5% 0% 0% ...
8
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5answers
3k views

Do I owe taxes if my deductions are higher than my income?

My total income this year was $16,604 (wages, interest, and business income). My deductions (including IRA, personal exemption, standard deduction, and self employment tax) was $17,404. TurboTax ...
4
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2answers
3k views

How is my 'Personal Investment Performance' on my 401(k) calculated?

My 401(k) shows the following: my starting value at the beginning of the year personal contributions employer contributions investment gains/losses Closing value from Yesterday Total Change ...
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2answers
46 views

Is this the right tax statement for Roth IRA back conversion?

I moved $5500 from traditional IRA to Roth IRA in January 2014 for tax year 2013 . Then I moved another $5500 from traditional to Roth IRA for tax year 2014 in March 2014. When depositing fund in IRA, ...
3
votes
1answer
759 views

What is the full formula for calculating a FICO 9 credit score?

I'm familiar with the percentage breakdown of how a credit score is calculated. I'm wondering what is the exact formula is that can be used to come up with a point value based on specific input ...
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4answers
939 views

How are bonuses taxed? Why is withheld amount not same as final amount?

I have not found any clarity looking at a lot of search engine results and articles. Most articles state that there are 2 possibilities, that taxes from bonuses can be withheld at a flat 25% rate, or ...
3
votes
4answers
197 views

A calculator that takes into account portfolio rebalancing?

I'm looking for a calculator that takes into account rebalancing when estimating total returns using historical data. For example, I'd input the following into the calculator: I have an initial ...
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0answers
35 views

How is minimum payment calculated for this daily amortized loan?

I'm trying to figure out how the bank calculated the minimum payment for a personal loan. Starting Principle: $6,800 Interest Rate: 13.750% Loan Term: 36 months Payment Frequency: Monthly Start ...
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1answer
46 views

What Percentage of my Income do I Have to Pay in Employment Insurance (EI) Deductions?

I am from Calgary, Alberta, and I am wondering how much % of my hourly wage will be paid to my EI (employment insurance). Is the percent rate different for every worker, if not, what is the fixed ...
2
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1answer
72 views
0
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1answer
158 views

How do I calculate my net worth according to the book “The Millionaire Next Door”?

I remember reading about PAWs, UAWs, and AAWs. I also remember that the formula for what your net worth should be on average (to be an AAW) is your income (without inheritance[s]) multiplied by one ...
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2answers
170 views

How do you choose which mortgage structure is appropriate when buying a home?

My lease is up in 1 month, and I'm looking to buy a home in the next 4 weeks. I have narrowed it down to two that I am interested in. I'm wondering about the type of mortgage I should get. Which ...
4
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1answer
556 views

Calculating equity split in selling a property

Purchased a property with another person in 1998. We remained equitable partners until April, 2009 when the other party stopped paying their share of the mortgage, condo fees, property tax, upkeep. I ...
2
votes
2answers
349 views

What is the best way to calculate total yield on a stock portfolio?

What is the best way to calculate the total yield of a stock portfolio? I started managing my own investments last year and it looks like I leaned towards dividend investing. I am wondering how I ...
2
votes
1answer
213 views

Calculating total number of monthly payments in Excel using NPER and PMT?

How to calculate the total number of monthly payments given the amount of loan ($275,000), the annual interest rate (4.35%) and the number of years (30)? I'm confused because I'm trying to use the ...
3
votes
5answers
766 views

Why would one W-2 give so much more back than the other?

I'm a single male with no dependents. I had two W-2s for this year, one of which showed a gross earning of ~$30,000 while the second was for ~$20,000. When I fed the first one into TurboTax, I got a ...
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2answers
160 views

Not receiving a tax refund because local taxes weren't withheld on my paycheck?

For instance, if the local New York City tax wasn't taken out of my paycheck, does that directly affect my tax refund? From what I understand the calculation for a tax refund is dependent on whether ...
3
votes
2answers
603 views

How does “on the next percentage” work (for company matching)?

For example, if I contribute 5%, the company matches that contribution with: 100% on the first 2% 40% on the next 2% 25% on the next 1% How do you calculate the next percentage.. and of what ...
2
votes
2answers
133 views

Mathematics behind deciding to do a lump sum mortgage payment vs. RRSP contribution?

If I have 10,000 extra dollars, how could I decide between doing either: A lump sum mortgage prepayment (2.1% variable closed interest rate, 250k remaining balance), or, An RRSP contribution ...
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2answers
2k views

Choosing between two car deals on the same car - NPV

This is basic question, but I have starred myself blind on it - I am stuck. I am not sure which formulae I should use. Here is the story. I am looking to buy a car. I have found two dealerships ...
4
votes
1answer
716 views

If I earn 40 credits and stop working, would I get full Social Security benefits at age 67?

If I met my 40 credit requirement in my 30s, and then left the States permanently and work at another country, and pay taxes there, not to the US, would I receive the full benefits when I become ...
2
votes
1answer
69 views

How does Value get rounded in figuring out Bonds Value?

I was reading up on Bonds here on About.com Why Do Bond Prices and Yields Move in Opposite Directions? In the second example it offers: In this example, the opposite scenario occurs. The same ...
4
votes
2answers
389 views

Formula to decide when to break a Certificate of Deposit (CD)?

I'm trying to create a certificate of deposit (CD) comparison tool and have been working on a formula to compare a CD with a higher interest rate to a CD I might own with a penalty period. I believe ...
5
votes
2answers
3k views

How to translate old price amounts to their modern day equivalents?

I hope this is the right place to ask. :) I'm currently working on what is to be a wiki/encyclopedic website. Some articles contain amounts or prices like construction costs and such, but since these ...
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1answer
82 views

How do I calculate the return on my stock _call_ option, similar to my _put_ example?

I'm trying to figure out the effective percentage return when I write ("sell to open") a stock call option. I think I've figured it out for put options. Consider this put example I think XYZ stock ...
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votes
6answers
6k views

Why do mortgage affordability recommendations use gross income?

Whenever I see someone ask how to calculate how big a mortgage he can afford, the answer almost always comes back as a percentage of gross income. Why use gross income as the baseline? Why not net ...
0
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2answers
88 views

How would you figure the cost of something in the future including inflation?

Looking for an excel formula that can calculate the cost of something based on a current price that factors in price increases and inflation. For example a plane ticket cost (econ LAX to JFK) in 30 ...
1
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1answer
151 views

Income tax calculate on your per company or on my total income in year?

I don't know if this is right place of ask this question. But still need to ask. Now I start financial year with by company A. So company A only provide final settlement account ( including AVP ) in ...
0
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0answers
81 views

Calculate a realistic project valuation?

If we have a profitable project where profit is x and cost of equity is y and the project has 0 growth and nothing else changes, then the value according to a perpetuity will be x/y e.g. profit this ...
0
votes
0answers
47 views

Options contract calculator - for non-equities

All of my options calculators are within stock trading platforms, or readily found on the internet and require stock/index symbols. I am trading illiquid options over the counter, on an asset. I have ...
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0answers
86 views

How to calculate interest charged on my loan given a series of dates & payments?

I want to calculate the interest rate payed for this loan using Mathematica. The initial amount was of 12000€, then they asked to pay 240€ for opening the loan and another 870€ for the insurance for ...
0
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0answers
44 views

How are the sub-periods derrived in TWRR Daily Valuation?

I've been looking at the TWRR Daily Valuation method and I'm trying to understand how to break the total performance period into sub-periods when there are irregular cash flows. As the article ...
2
votes
2answers
110 views

How can we determine how much income our savings could generate if we purchase an annuity?

I am 62 and my wife is 56. We have almost 1.5 M in retirement investment and 250 K in non retirement investments. I was wondering if we both retire in 6 years and turn all our investment into annuity, ...
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0answers
72 views

Excel Canadian Mortgage Formula Help

I need to get the ending balance formula for a project in excel calculating mortgage payout. I am hoping to develop a formula instead of formulating an amortization table. I have used the following ...
9
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4answers
404 views

How do you go about calculating how much you need after retirement?

I am posting this question after reading this article on WSJ, where it says: Just 42% of working-age Americans have even tried to calculate what they will need in retirement, according to the ...