-90.55% is the change from 931 to 88
Calculation steps:
[( 88 - 931 ) ÷ 931] x 100 = -90.55%
Formula
Percentage change = [(88 - 931) / 931] x 100
Subtract the new number by the original number
88 - 931 = -843
-843 ÷ 931 = -0.9054779806659506
-0.9054779806659506 x 100 = -90.55%