-25% is the change from 72 to 54
Calculation steps:
[( 54 - 72 ) ÷ 72] x 100 = -25%
Formula
Percentage change = [(54 - 72) / 72] x 100
Subtract the new number by the original number
54 - 72 = -18
-18 ÷ 72 = -0.25
-0.25 x 100 = -25%
Example