# Tagged Questions

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.

151 views

### How does a monthly inflation rate work?

I'm struggling to understand the following inflation numbers for South Africa given here: http://www.tradingeconomics.com/south-africa/inflation-cpi Year Month Inflation 2015 Jun 4.7 2015 Jul ...
178 views

### Question related to Public Provident Fund interest calculation

Consider the following extract from a newspaper article : The interest on your PPF balance is compounded annually, but the calculation is done every month. The interest is calculated on the ...
438 views

### Calculating interest for a loan made for a friend on a credit card

I have a credit card with a 16.5% APR. I had \$2500 on the card already. I made a purchase for a friend of \$3700, who has just paid me back after 11 months. How can I calculate the interest he would ...
1k views

### “Rule of 72” For Higher Multiples?

The rule of 72 states that if I earn n% interest, I can divide 72 by n and get the approximate number of years that I'll double my money. Suppose that I wanted to find out how many years to quadruple ...
109 views

### How to calculate multiple debt payments with additional lump sum and varying additional monthly payments

I'm attempting to create a calculator that I can use to try different debt repayment scenarios. If I have multiple debts with different rates I'm wondering what algorithm to use to figure out how long ...
6k views

### If I was to buy something a day before my due date for my credit card bill, would I be charged interest?

First of all, I am a resident of Canada. I am new to credit cards, so I hope my question makes sense. I've had my card for a few months ago and I've always paid the balance in full by the time the ...
6k 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?
779 views

### Is there a dollar amount that, when adding Massachusetts Sales Tax, precisely equals \$200?

I am confused about calculating Massachusetts Sales Tax (6.25%). Is there such an amount, that when added to its sales tax, equals \$200? The reason I ask is because my business has been charging \$...
2k views

### How can I calculate a “running” return using XIRR in a spreadsheet?

I should say that I'm not married to XIRR, I just want to calculate the return on a running basis in a column next to dates, deposits and balances. Here's a screenshot of a simplified spreadsheet in ...
176 views

### How do I determine how long it will take to pay off my all my loans?

Right now I have a spreadsheet with the loans I have, the interest rates the are each at, and how much I am putting toward each in monthly payments. I then calculate how long each loan will take to ...
126 views

### Loan repayment calculation and monthly compounding interest problem

I need to write a mock up application that returns a quote to potential borrowers. The specification says that "The monthly and total repayment should use monthly compounding interest". Program ...
129 views

### How to calculate the number of months until a loan is paid off (given principal, APR and payment amount)?

Does anyone know what formula they use for this When will you be debt-free? calculator? I want to put it in a Google Spreadsheet, but I can't find a payments-to-debt-free formula using my Google ...
74 views

### Calculate APR from balloon loan

I need formula to calculate nominal APR from balloon loan with contract fee. The initial data and payment schedule is: Loan sum: 10 000€ Interest rate per year: 15% Loan period: 2 years Payments ...
77 views

### Effective Interest Rate from bifurcated interest rate

Here goes, this is the scope of my question: Say I want to take out a credit card, that has 0% interest for 12 months, when at the 13th month, whatever debt is taken out on the card will be subjected ...
32 views

### How to calculate the value of a bond that is priced to yield X%

I am currently practicing for a beginners exam in finance. One of the previous exams had the following question: You own a 2 year, £1000, 7% bond, with semi-annual coupons. If the bond is priced ...
63 views

### How to calculate interest gained by paying off credit card right before the due date and not earlier?

By not paying off the credit card statement amount right after it is generated but closer to the due date, the same funds can be in a savings account generating interest. I'd like to know precisely ...
77 views

### Calculating interest accrued with extended Initial Payment Date

I'm wondering how do I calculate the interest accrued if the intervals aren't perfect. For example Principal - \$100,000 Interest - 8% Compounding monthly Disbursal Date - January 1st, 2016 Initial ...
16 views

### How can I calculate the spot rate for a given time period, given the discount rate for that same period?

I have a time period of .353 years, for which I have found a discount rate of .926142. How can I use this information, and only this information, to find the spot rate? Similarly, for a time period of ...
132 views

### How to calculate new price for bond if yield increases

I am learning for a class that is partly about finance and I don't have any background in finance at all. I am struggling with a question that was asked in last years exam: A bond trades at £1015, ...
2k views

### What's the beta of U.S. treasury bills?

Is it zero? My reference equation is: Bi = σim / σm2 Is the top sigma of im considered to be zero, since treasury bills have a fixed payout? If not, how do you suggest ...
18k views

### How do I calculate yield-to-maturity (YTM) with a simple handheld calculator?

Is there a way to calculate yield-to-maturity (YTM) using just the payments (not all equal) with just a simple handheld calculator and without using Excel?
37 views

### Calculating Future Value: Initial deposit and recurring deposits of a fixed but different Value

Following scenario: I open a savings account and I deposit 1,000 USD. Now, every year I deposit another 100 USD. The interest rate is 5%. I want to know how much money will be on that savings account ...
45 views

### How do I calculate the past value of a loan?

I have a loan that was originally \$100,000. It is worth \$116,971.41 today. It has been accruing 6% annual interest, compounded daily. I do not know the start date. How do I calculate what the value ...
35 views

### Compound Rate as a Function of Market Interest Rate

I have these two pictures from Investopedia. Here is the link to the page. I am confused by this concept. How is the quarterly compound rate 11.825% with a 12% annual rate? Furthermore, how is ...
55 views

### compute the principal and interest for a specific month (period) on an amortized loan

I can easily compute the monthly payment for a loan given the amount, the number of periods, and the periodic rate. From that, I can easily build an amortization table iteratively by subtracting the ...
64 views

### Does a one time additional payment reduce the interest paid on a Prosper or Lending club personal loan

I have a loan with Lending Club with a certain interest rate. So every month I pay the principal as well as about \$200 in interest. Assuming the loan balance left is \$20000 and the interest rate is 7%,...
17 views

### How to calculate yield to maturity on Excel

Excel has a function RATE, which seems to work fine if your yield to maturity is an integer. However, in real life, maturity of the most bonds we handles do not have have maturity which exactly 6 ...
300 views

### What is the formula for the monthly payment on an adjustable rate mortgage?

Can people tell me how monthly payments are calculated when a mortgage has an initial rate? What is the formula? I have seen online calculators but not formulae. My guess is: We assume that the ...
35 views

### UK funds charges and how often interest is credited

I have two questions regarding funds in the UK. When I read a return p.a. of a fund in the UK from a website such as trustnet.com, do I have to calculate the return minus ongoing charges (OC) to ...
147 views

### Cash Advance causes recurring interest fee after paid in full

In January I made a cash advance of \$110 with my credit card. In Februaury, I paid off January's balance (+\$10 cash advance fee +\$1.82 cash advance interest) in full by the statement due date. This ...
76 views

### How to calculate take home salary in Sacramento, California? [duplicate]

How can I calculate my take home pay in Sacramento area in California? I have an offer of USD 95,000 per year in Sacramento. After searching multiple sites for tax calculations, I understood that it ...
66 views

### How to calculate the effective interest rate of a loan that must be paid back with interest as lump sum

An example question asks: Student Bank has agreed to lend you funds to complete the last year of your degree. The bank will lend you \$2,400 today, if you agree to repay a lump sum of \$4,000 in ...
53 views

### Calculating theoretical Present Value

If I were to win the lottery and the present winnings were less than twenty million paid out over a time period of twenty years, how would I theoretically find the present value amount?
36 views

### Dividends Growing Faster than Cost of Capital

If a share's dividends are assumed to be indefinitely growing faster than the cost of capital (discount rate) then the net present value of all future dividends for the share can be shown to be ...
163 views

### How to know how much interest paid per payment in a fixed tenor personal loan

I recently took up a personal loan. I do not have any financial background and I do not have any issue paying the loan but I am just curious on how they come out with some numbers. To be precise, the ...
32 views

### How can I retrieve any weights from the portfolio on the EF?

Efficient Frontier image In an efficient frontier build with sample moments, I'd like to retrieve weights from any portfolio on the efficient frontier knowing only the standard deviation and the ...
71 views

### How to find leverage for futures [closed]

In my understanding, leverage is the risk we take for our investment. That is highly leveraged instruments have high risk and high potential reward. But how can we calculate leverage of futures? ...
6k 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 ...
120 views

### Calculating EPS

I have started teaching myself basic business stuff and have a question regarding calculating earnings per share. Q: [bunch of numbers for revenue, expenses...] At the beginning of year: 80,000 ...
777 views

### Calculate EPS yourself

According to finance.yahoo.com, PriceSmart Inc. (PSMT) has an EPS of 2.1 as of May 14, 2012 close. Where exactly do they get the earnings from? I thought I understood the EPS, but when I tried ...
6k views

### Time-Weighted Rate of Return & Money-Weighted Rate of Return

Background I am trying to figure out the computational difference between Time-Weighted Rate of Return (TWRR) and Money-Weighted Rate of Return (MWRR). Let's say, I have a portfolio looking like ...
147 views

### Put-Call parity - what is the difference between the two representations?

I have seen these two terms for put-call parity: S + P = C +Ke^(-rT) S + P = C + K/(1+r)^T Which one is the correct formula? When to use each of them? What is the diffrence?
33 views

### How to compute real return including expense ratio

I am currently hesitating between 2 similar International Index Fund, FSIVX and FIENX. FSIVX have an expense ratio of 0.12% while FIENX have 0.63%. I can try to compare them side by side on google ...
897 views

### How to calculate average drawdown of a trading system?

Let's say that I'm trying to evaluate a FX trading system. I know how to calculate the largest drawdown during a period of time, but how can I calculate the average drawdown or the average largest ...
310 views

### Recurring deposit interest calculation compounding period rule in India

Is there any RBI guideline or rule or guideline available for Recurring Deposits interest calculation compounding period for Indian Banks. I find it different for different banks in India and the ...
1k views

### What's the equation for savings growth, that considers contributions?

I'm looking for the equation that basically works like this "Assuming you have X saved, and save Y more a year, and your savings grow at Z percent, you will have S after T years."
95 views

### Should total revenue or profit be proportional to money x investment time

I'm currently supervising a project with investors, and the following problem arrived: - How should I calculate the profits of each investor, i.e. should profit itself (after taxes and other ...
547 views

### How do I calculate the dividend yield for Disney Co?

I'm trying to "estimate" the dividend yield for Disney (NYSE:DIS). Let's pretend stock price will stay at \$57 and the tax rate is 1%. Is it really the case that after 3 years with this stock the ...