-25% is the change from 48 to 36
Calculation steps:
[( 36 - 48 ) ÷ 48] x 100 = -25%
Formula
Percentage change = [(36 - 48) / 48] x 100
Subtract the new number by the original number
36 - 48 = -12
-12 ÷ 48 = -0.25
-0.25 x 100 = -25%
Example