-52% is the change from 325 to 156
Calculation steps:
[( 156 - 325 ) ÷ 325] x 100 = -52%
Formula
Percentage change = [(156 - 325) / 325] x 100
Subtract the new number by the original number
156 - 325 = -169
-169 ÷ 325 = -0.52
-0.52 x 100 = -52%
Example