-25% is the change from 4 to 3
Calculation steps:
[( 3 - 4 ) ÷ 4] x 100 = -25%
Formula
Percentage change = [(3 - 4) / 4] x 100
Subtract the new number by the original number
3 - 4 = -1
-1 ÷ 4 = -0.25
-0.25 x 100 = -25%
Example