The formula for simple interest is Interest = Principal x Rate x Time ÷ 100
As the rate is an annual rate and the period is 1 year then Interest = Principal x 4.5/100.
The balance at the year end = Principal + Interest = Principal x 104.5/100.
You would first find the percent (if it was 5% interest (for example) on a calculator you would do the amount then multiply by 5, then click the percent, by hand: you would multiply the amount you paid for then multiply by 0.05 then you would get the interest; simple math :D
simple interst is when you earn interest from your principal but compound interest is when you earn interest from your principal as well as from your previous interest
With SIMPLE ANNUAL interest, the interest is only applied once at the end of each year. So: At the end of the first year she earns $3 in interest. Her balance is $303. At the end of the second year, she earns $3.03 in interest. Her balance is $306.03. At the end of her third year she earns $3.06 in interest. Her balance in now $309.09. She earned a total of $9.09. She can now buy the unicorn she has had her eye on, because she is living in a fantasy world (since there is no such thing as a savings account with 3% interest in todays economy. She'd be lucky to find one providing over 1%.)
To find interest rate you multiply the price by the time by the percent
Interest = 83 x 3 x 15 = 3735. This is assuming you meant "simple" interest. If it is a one-off interest rate then the term is irrelevant and interest is 83 x 15 ie 1245
You would first find the percent (if it was 5% interest (for example) on a calculator you would do the amount then multiply by 5, then click the percent, by hand: you would multiply the amount you paid for then multiply by 0.05 then you would get the interest; simple math :D
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That's what I want to know
simple interst is when you earn interest from your principal but compound interest is when you earn interest from your principal as well as from your previous interest
With SIMPLE ANNUAL interest, the interest is only applied once at the end of each year. So: At the end of the first year she earns $3 in interest. Her balance is $303. At the end of the second year, she earns $3.03 in interest. Her balance is $306.03. At the end of her third year she earns $3.06 in interest. Her balance in now $309.09. She earned a total of $9.09. She can now buy the unicorn she has had her eye on, because she is living in a fantasy world (since there is no such thing as a savings account with 3% interest in todays economy. She'd be lucky to find one providing over 1%.)
There are many simple interest calculators online that you can find. I found the one at http://easycalculation.com/simple-interest.php to be simple and accurate.
To find interest rate you multiply the price by the time by the percent
the formula for simple interest is I=PRT (interest=principal x rate x time )
First find out what the interest rate is from the money lender or deposit taker.
When you have a balance on your credit card, you are paying interest. If you can find a credit card with a lower interest rate and a 0% balance transfer, you will be saving money.
time(t)= interest/rate , princaple
Interest = 83 x 3 x 15 = 3735. This is assuming you meant "simple" interest. If it is a one-off interest rate then the term is irrelevant and interest is 83 x 15 ie 1245