-90.55% is the change from 910 to 86
Calculation steps:
[( 86 - 910 ) ÷ 910] x 100 = -90.55%
Formula
Percentage change = [(86 - 910) / 910] x 100
Subtract the new number by the original number
86 - 910 = -824
-824 ÷ 910 = -0.9054945054945055
-0.9054945054945055 x 100 = -90.55%