# Questions tagged [calculation]

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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### Implied appreciation of a currency

I have a very specific question in regards to a forward calculation. The USDEUR spot rate today is 0.759503. Libor and Euribor forward rates for the NeXT year are as follows: Fwd 3m Libor 0.00288 0....
134 views

### Why does this retirement calculator calculate ROI on only half of my savings?

I plugged some example numbers into the early retirement calculator at Networthify: a \$50,000 annual income, \$15,000 of annual expenses, and a starting net worth of \$100,000. I’m confused about one ...
2k 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?
36 views

### Is an online “savings withdrawal” calculator a reasonable model for retirement investment draw downs?

I want to calculate a two-phase retirement, with Phase I being the period prior to filing for Social Security retirement benefits, and Phase II being the post-filing period. Is it reasonable to use ...
28 views

### Enhancement of the open source lib for calculation of IRR (internal rate rate)

I am cs student , and has been asked to enhance the documentation for open source lib finance.js for IIR (internal rate of return) for various industry Here I am trying to calculate IIR for the ...
71 views

### How To Calculate Daily Volatility?

I'm working in SQL Server and I'm trying to find the daily volatility of a stock's price. Is it simply day2price/day2price-1? Is that considered daily volatility? Or, is there something else to it? ...
250 views

### Pay off student loans vs pay myself and try to get PSLF? (is my math right?)

I am trying to decide between paying off my student loans in 5 years vs attempting to quality for Public Service Loan Forgiveness (PSLF), which I could conceivably do in 5 years. My options are to 1) ...
65 views

### Security Analysis (Ben Graham): LIFO question

I'm currently reading/studying Benjamin Graham's work in Security Analysis (1951 edition) on page 112 & 113 he demonstrates the difference between FIFO and LIFO. Table 10 shows the difference ...
52 views

I'm starting to learn a lot about finance/investing on my own but I'm struggling with the calculations behind Add-On CDs. I opened an 14-Month Add-On CD with a \$1000 deposit with a monthly \$30 add-on ...
176 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 ...
158 views

### Steps to calculate reduction in spending vs. savings till retirement

I'm stuck and I I think it's an algebra issue. I have a typical what do I need to save (today) so I can retire question for the first part. Let's say you need \$1,239,926.43 in savings at retirement (...
33 views

### Question about calculating wash sales across multiple orders

How do I handle the accounting of my wash sales? I bought AXP in 3 different orders, all purchased within 5 days of each other: 100 @ 122 100 @ 100 100 @ 76 I sold all 300 @ 102, and then ...
25 views

### Calculating relative performance of a short trade

This may seem incredibly simple, but I just can't get my head around it. Example: I make a short trade and the stock falls by 20%. During that period, the index falls by 10%. Have I made a +10% ...
54 views

### How to calculate stock return

Is there a formula to calculate compound return of a given stock, taking into account dividend and reinvestment? For example, a stock which returns 5% yearly plus a 3% annual dividend (paid every ...
65 views

### How does the Positive Volume Index (PVI) formula work?

I'm completely new to calculation of trading indicators and I can't understand this PVI formula: PVI = {yesterday’s PVI X [(today’s CP – yesterday’s CP) ÷ yesterday’s CP]} + yesterday’s PVI If I ...
73 views

### Why is this stock's P/E ratio so different from Price/EPS?

I was looking at Alibaba Group Holding Ltd ADR (BABA)'s P/E ratio of 28.55 from Morningstar. While looking at its financials, Morningstar says that its diluted EPS TTM is 26.41. But its stock price ...
34 views

### Explanation of Macaulay duration for bonds?

I understand how to calculate duration but I'm a bit confused about what it actually tells me and how it is useful and I can't seem to find anything that tells me. If a bond has a maturity of 5 years ...
69 views

### How are net income and yield calculated for margin trading?

You have purchased 150 shares at 10 each. You expect to sell these at 15 each. You only managed to sell 100. Out of your initial purchase price, 400\$ were borrowed. Brokerage fee= 2% for the ...