-30% is the change from 360 to 252
Calculation steps:
[( 252 - 360 ) ÷ 360] x 100 = -30%
Formula
Percentage change = [(252 - 360) / 360] x 100
Subtract the new number by the original number
252 - 360 = -108
-108 ÷ 360 = -0.3
-0.3 x 100 = -30%
Example