interest rate
simple interest formula
how to find the percent of a number
Principal
To find the total after a disccount
To change a decimal to a percent
To change a percent to a decimal
To find the total after tax or gratuity
interest
how to find percent error
how to find percent increase or percent decrease
difference/original = %/100
Move the decimal 2 times to the right
is/of = %/100
Multiply the cost by the percent as a decimal, the subtract that amount from the cost
difference/actual = %/100
the amount of money being charged to borrow money or the amount of money earned for investing money
the % being charged for a loan or the % being earned for investing
Move the decimal two times to the left
Multiply the cost by the percent as a decimal, then add it back to cost
I = PRT
the amount of money being invested or the amount of money being borrowed
