-34.15% is the change from 82 to 54
Calculation steps:
[( 54 - 82 ) ÷ 82] x 100 = -34.15%
Formula
Percentage change = [(54 - 82) / 82] x 100
Subtract the new number by the original number
54 - 82 = -28
-28 ÷ 82 = -0.34146341463414637
-0.34146341463414637 x 100 = -34.15%