-12% is the change from 325 to 286
Calculation steps:
[( 286 - 325 ) ÷ 325] x 100 = -12%
Formula
Percentage change = [(286 - 325) / 325] x 100
Subtract the new number by the original number
286 - 325 = -39
-39 ÷ 325 = -0.12
-0.12 x 100 = -12%
Example