-4% is the change from 25 to 24
Calculation steps:
[( 24 - 25 ) ÷ 25] x 100 = -4%
Formula
Percentage change = [(24 - 25) / 25] x 100
Subtract the new number by the original number
24 - 25 = -1
-1 ÷ 25 = -0.04
-0.04 x 100 = -4%
Example