-4% is the change from 75 to 72
Calculation steps:
[( 72 - 75 ) ÷ 75] x 100 = -4%
Formula
Percentage change = [(72 - 75) / 75] x 100
Subtract the new number by the original number
72 - 75 = -3
-3 ÷ 75 = -0.04
-0.04 x 100 = -4%
Example