Subtract to find the amount of change

New amount original amount

67 50

= 17                      (Subtract: 67 50 = 17)

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.