A percent is a value multiplied by 100 show by with the percent symbol (%). For example, 4% is the same as the decimal value of 0.04 or the fraction 4/100 (which could also be reduced to 1/25).
Traditionally, percentages are used when dealing with changes in a value, particularly money. For, example a store may have a sale or a bank may charge 7.6% interest on a loan.
= The base of a percentage change is the last value. Many occur from using the base in a percentage calculation.