-90.85% is the change from 940 to 86
Calculation steps:
[( 86 - 940 ) ÷ 940] x 100 = -90.85%
Formula
Percentage change = [(86 - 940) / 940] x 100
Subtract the new number by the original number
86 - 940 = -854
-854 ÷ 940 = -0.9085106382978724
-0.9085106382978724 x 100 = -90.85%