If your inital investment is $1000, and your rate of return is say 10%, did you make $100 or $1100 from your $1000?

The interest is your return, 100 dollars in the first year.

0.1 * 1,000 = ?

That's what you'll make on your investment.

Of course you'll also get the principle back as well as the interest.

Is it certain that you will get the principle back for every kind of investment?

No. When you invest in junk bonds or stocks you are not guaranteed that you'll get all of your initial investment back.

To calculate your investment return, you need to multiply your initial investment by the rate of return and add it to your initial investment.

In this case, your initial investment is $1000 and the rate of return is 10%. To find the return amount, you take $1000 and multiply it by 10% (which is equal to 0.10).

Return amount = $1000 * 0.10 = $100

So, you made a return of $100. To determine your total amount after the return, you add the return amount to your initial investment:

Total amount = Initial investment + Return amount = $1000 + $100 = $1100

Therefore, your total amount after the return is $1100.