-21.88% is the change from 32 to 25
Calculation steps:
[( 25 - 32 ) ÷ 32] x 100 = -21.88%
Formula
Percentage change = [(25 - 32) / 32] x 100
Subtract the new number by the original number
25 - 32 = -7
-7 ÷ 32 = -0.21875
-0.21875 x 100 = -21.88%
Example