# Question: How do you solve investments?

Contents

## How do you calculate investment?

You may calculate the return on investment using the formula: ROI = Net Profit / Cost of the investment * 100 If you are an investor, the ROI shows you the profitability of your investments.

## How do you find the original amount of an investment?

Multiply the sum by the number of years in question. Take the future value you have in mind and divide it by that sum to find out the initial investment you need.

## What is a good return on investment?

According to conventional wisdom, an annual ROI of approximately 7% or greater is considered a good ROI for an investment in stocks. This is also about the average annual return of the S&P 500, accounting for inflation. Because this is an average, some years your return may be higher; some years they may be lower.

## How do you figure out an interest rate?

How to calculate interest rate

1. Step 1: To calculate your interest rate, you need to know the interest formula I/Pt = r to get your rate. …
2. I = Interest amount paid in a specific time period (month, year etc.)
3. P = Principle amount (the money before interest)
4. t = Time period involved.
5. r = Interest rate in decimal.
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## What is the interest formula?

What is the Formula for Simple Interest? Simple interest is calculated with the following formula: S.I. = P × R × T, … R = Rate of Interest, it is at which the principal amount is given to someone for a certain time, the rate of interest can be 5%, 10%, or 13%, etc., and is to be written as r/100.

## What is Rule No 72 in finance?

What Is the Rule of 72? The Rule of 72 is a simple way to determine how long an investment will take to double given a fixed annual rate of interest. By dividing 72 by the annual rate of return, investors obtain a rough estimate of how many years it will take for the initial investment to duplicate itself.

## What is the initial investment?

Initial investment is the amount required to start a business or a project. It is also called initial investment outlay or simply initial outlay. It equals capital expenditures plus working capital requirement plus after-tax proceeds from assets disposed off or available for use elsewhere.

## What was the original investment?

Original Investment means all moneys and property whether real or personal originally settled on the trusts of the Trust.

## How do you calculate maturity amount?

FD Calculation Formula

The formula to calculate the FD returns is, A=P(1+r/n)^n*t. Here, A is the maturity amount, P is the principal amount invested in the FD, r is the rate of interest and n is the tenure.

## How do you do interest in math?

The simple interest formula is given by I = PRt where I = interest, P = principal, R = rate, and t = time. Here, I = 10,000 * 0.09 * 5 = \$4,500. The total repayment amount is the interest plus the principal, so \$4,500 + \$10,000 = \$14,500 total repayment.

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## How do I calculate simple interest monthly?

Firstly, multiply the principal P, interest in percentage R and tenure T in years. For yearly interest, divide the result of P*R*T by 100. To get the monthly interest, divide the Simple Interest by 12 for 1 year, 24 months for 2 years and so on. 