-30.49% is the change from 82 to 57
Calculation steps:
[( 57 - 82 ) ÷ 82] x 100 = -30.49%
Formula
Percentage change = [(57 - 82) / 82] x 100
Subtract the new number by the original number
57 - 82 = -25
-25 ÷ 82 = -0.3048780487804878
-0.3048780487804878 x 100 = -30.49%