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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2answers
463 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
635 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
1answer
2k 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 ...
8
votes
3answers
9k views

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

If I meet 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 ...
65
votes
11answers
29k views

15 year mortgage vs 30 year paid off in 15

I've found similar questions, but they all seem to focus on a preexisting 30 year mortgage and whether or not it makes sense to refinance to a 15. My question is a bit different. I have not yet ...
2
votes
2answers
172 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 ...
0
votes
2answers
280 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
vote
1answer
253 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
votes
0answers
50 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 ...
1
vote
0answers
107 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
votes
0answers
65 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
119 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, ...
1
vote
0answers
93 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 ...
2
votes
3answers
727 views

Amortization Payments with a delay in initial payments

Typically a loan is disbursed and a month later is when payments are to be made. But there can be an agreement where it's to be delayed for a year or as short or as long as they want. I'm wondering ...
1
vote
1answer
106 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 ...
0
votes
2answers
126 views

Average interest rate vs compound interest rate

(1) Taking an average of %profit (2) Is calculating %profit by (end-start/start)*100 (3) Is (2) divided by 10 periods My questions are; What is the REASON why (1) and (3) are different values? ...
0
votes
2answers
441 views

Loan Amortization with Daily Calculation

I'm trying to solve this Loan Amortization Question. Principal = $125000 Interest = 8.5% Compounded semi annually Duration is 10 years (120 months) Monthly Payments Loan given on 7/31/2009 First ...
0
votes
3answers
64 views

IRR Calculation

I have a series of cash flows, a $1000 deposit, and then 5 annual withdrawals of $500,$400,$200,$200,and finally, $100. I understand this is an IRR calculation, and set it up as follows: ...
0
votes
2answers
535 views

Formula for how to distribute a loan payment between multiple loans such that the remaining principal accrues the least interest?

Assume 4 loans (Balance @ p.a. interest): $10,000 @ 5.5% $5,500 @ 7.25% $2,000 @ 5.5% $1,000 @ 4.5% If I am looking to pay $7,250 towards principal only, how would I calculate the ...
2
votes
1answer
111 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 ...
2
votes
2answers
485 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 ...
0
votes
1answer
70 views

How can I calculate minimum payment on quick loan? [closed]

I am working on calculator for quick loans. Client can select how much he will pay monthly. Base on it payment schedule will be calculated. Payment interest depends on 1 payment period. Number of ...
-2
votes
1answer
240 views

Which of these unrealized profit calculations is correct? And, why other calculations are wrong?

Which of these unrealized profit calculations is correct? And, why other calculations are wrong? @ $10 per unit, $1000 - Subscription (100 units) $0500 - Cash dividend (50 units) $0500 - Reinvested ...
5
votes
3answers
4k views

Is this the correct math for estimating federal taxes using marginal tax brackets?

(I updated this because I think I wasnt making myself clear in the first part of the question and I clarified what I'm trying to do. I'm just looking to use marginal tax brackets to derive a good ...
5
votes
1answer
946 views

How do we correctly sum up returns

Assume I have done 8 trades and calculated the profit (or loss) of each trade: Balance PnL 100 102 2.00% 105 2.94% 103 -1.90% 101 -1.94% 98 -2.97% 97 ...
1
vote
3answers
103 views

In need of Algebra assistance

For some reason, my Algebra is getting rusty and I need help solving for the Purchase of the following: (Sale - Const - Purchase) / (Const + Purchase) = ROI
3
votes
1answer
69 views

How should I include pension contributions in my UK Child Benefit calculations?

I'm using the gov.uk Child Benefit Tax Calculator and I don't know how I include my pension contributions in the "Pension contributions deducted from your pay" and "Pension contributions not paid from ...
2
votes
0answers
266 views

How do you use the formula for YTM when the compounding is semi-annual?

How do I calculate yield-to-maturity (YTM) with a simple handheld calculator? do we multiply n by 2?
0
votes
3answers
86 views

Personal Loan issuer online service

I have chunk of money that I would like to loan to my brother. I would like to charge him interest same as banks do. Is there a website or online service where I can enter the "loan" amount, ...
0
votes
3answers
154 views

What is the meaning of “$N industry”?

For example, in the sentence "Semiconductor fabrication is a $100 billion industry.", what exactly is being said?
1
vote
2answers
2k views

Google Finance: Input Parameters For Simple Moving Averages

I'm having some trouble understanding the simple moving average lines that can be added to a quote graph from Google finance. This related Stack Exchange question indicates that the only input ...
2
votes
2answers
276 views

How to calculate ROI on investments? [duplicate]

I looked through the previous questions, and couldn't find one that quite addresses my question. If I start with $1000, and through investing it goes to $1200(100 shares at $10 go to $12), I can say I ...
4
votes
2answers
379 views

How can I calculate (approximate) the future value of my investments? Is this formula appropriate?

I want to check to see if I'm meeting my investment goals, so I want to project forward my assets given a growth rate and a monthly deposit amount. What is the best formula to use for this? Is this ...
6
votes
2answers
569 views

Am I doing the math for this covered call/long put strategy correctly? What risks do I run with this strategy?

In this trade, I write an in-the-money covered call and buy an in-the-money put (as an example) on GM, expiring in September 2014. The call premium is $10.02 with a strike of $26, and the put premium ...
1
vote
1answer
149 views

How can I check if my mortgage balance is correct?

Since I couldn't easily get my unpaid principal balance, I calculated my mortgage balance using a handful of online calculators. Today I took a look at the actual balance, and was rather surprised to ...
1
vote
1answer
134 views

Reasonable alternatives to using the Treasury rate as the risk free rate, e.g. for CAPM calculation?

For all practical purposes, the risk free interest rate is taken to be the short term Treasury bill interest rate. Let's say this rate is 0.5% per annum. But for an individual investor, if his bank ...
2
votes
2answers
2k views

When to use geometric vs. arithmetic mean? Why is the former better for percentages?

While computing the average price of a stock or index over a period of time, I have the choice between using an arithmetic mean or a geometric mean. Which should I use and when? I am reading a book ...
0
votes
2answers
53 views

Day of payment affecting Payment amount

I'm currently testing this Loan Amortization Software. I can enter in a Principal amount, Interest, Payment durations and future value in the end of the duration, When payments are to be made, ...
0
votes
1answer
211 views

Calculating the PV and the Remaining Payments for Loans with Steps

I thought I was able to figure this out, but unfortunately my numbers did not work. If someone would please help with this scenario, then that would be greatly appreciated. Say I'm taking out a ...
1
vote
2answers
70 views

Loan Amortization with Insurance

I'm wondering how does you calculate payment amount of the loan amortization schedule if insurance is involved. "Desjardins" insurance on loan is such that for every $1000 outstanding balance, you get ...
3
votes
1answer
184 views

How to determine withholding so at end of the year I neither owe more, nor get a refund?

A while back I was on a W2 job and I would get a large sum on my tax return. At one point I found a calculator that helped me figure out how to configure my W4 so that I would neither owe nor be owed ...
1
vote
1answer
785 views

Seasonal Loan Amortization

Hi I can compute a Basic Loan Amortization Schedule, But now I'm trying to Calculate a Seasonal Loan Amortization Schedule . So for example A loan starts at January And Will go on for 3 years, with ...
6
votes
3answers
1k views

What is the “rule of 70” or “rule of 72” with regards to investment, and how do I apply it?

What is the "rule of 72" (sometimes called the "rule of 70") with regards to investment, and how do I apply it?
1
vote
1answer
312 views

How to calculate how far a stock price can drop before a broker would issue a margin call?

Let's say the margin requirement for a stock XYZ is 50%. The current price of XYZ is $150/share. Let us say I put in $100, and borrow $50 from the broker to buy a share. Typically, how far can the ...
2
votes
2answers
130 views

How to calculate whether it's better to pay my education loan, or my home investment loan?

I have an education loan @ 11.5 % for 1,000,000. I can pay it in 3 years. I am planning to make an investment by buying a home @ 10.5% for 2,200,000. Term = 20 yrs. I am thinking if I sell the house ...
1
vote
2answers
252 views

Suppose earning an APR of 7% for 5 years, with interest compounded quarterly. What is the EAR? What is the Total Return?

Suppose you earn an APR of 7% for 5 years, with interest compounded quarterly. What is your EAR? What is your Total Return? The part I am confused is "with interest compounded quarterly" The ...
1
vote
3answers
3k views

Issuing bonds at discount - computing effective interest rate

Suppose Southwest Airlines issued $100,000 of 9%, 5-year bonds when the market interest rate is 10%. The market price of the bonds drops, and Southwest receives $96,149. First of all, in my textbook ...
2
votes
3answers
739 views

Equation to determine if a stock is oversold and by how much?

Given a stock, is there any mathematical equation than can determine if that stock is oversold? I will use the equation against all stocks in the market to generate a sorted list of oversold stocks.
1
vote
2answers
559 views

Calculating accumulated value of an annuity with changing payments?

In a series of 40 payments the first 10 payments are 10 each, the second 10 payments are 20 each, the third 10 payments are 30 each, and the final 10 payments are 40 each. The payments are equally ...
2
votes
1answer
70 views

How to calculate interest payments without EBIT

is there a way to calculate interest payments without EBIT. For example if I am searching for Apple Inc. in google finance I don't have Interest Payments in the income statement, there is no EBIT ...