Subtract to find the amount of change

New measurement original measurement

165 110 \ \

= 55                      (Subtract: 165 110 = 55)

Write a ratio that compares the amount of change to the original amount.Express the ratio as a percent.

Percent change = .

                  (Divide: )

Write decimal as percent.

Multiply by 100 and add .

                   (Multiply: )

The percent of change is about .In this case, the percent of change is a percent of increase.