-52% is the change from 25 to 12
Calculation steps:
[( 12 - 25 ) ÷ 25] x 100 = -52%
Formula
Percentage change = [(12 - 25) / 25] x 100
Subtract the new number by the original number
12 - 25 = -13
-13 ÷ 25 = -0.52
-0.52 x 100 = -52%
Example