Educator

Applications of Percents

• A percent of change is an increase or decrease expressed as a percent. If the new value is greater than the original one, it is a percent of increase; otherwise, it is a percent of decrease.

• Sales tax is a familiar example of a percent of increase.

• Discount is an example of a percent of decrease.

• When solving these kinds of problems, always write the percent as either a fraction with a denominator of 100 or a decimal equivalent to the percent.