-36% is the change from 225 to 144
Calculation steps:
[( 144 - 225 ) ÷ 225] x 100 = -36%
Formula
Percentage change = [(144 - 225) / 225] x 100
Subtract the new number by the original number
144 - 225 = -81
-81 ÷ 225 = -0.36
-0.36 x 100 = -36%
Example