Subtract to find the amount of change.
\New amount original amount
120 135
= 15 (Subtract: 120
135 =
15)
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 decrease.