-31.45% is the change from 124 to 85
Calculation steps:
[( 85 - 124 ) ÷ 124] x 100 = -31.45%
Formula
Percentage change = [(85 - 124) / 124] x 100
Subtract the new number by the original number
85 - 124 = -39
-39 ÷ 124 = -0.31451612903225806
-0.31451612903225806 x 100 = -31.45%