-90.92% is the change from 892 to 81
Calculation steps:
[( 81 - 892 ) ÷ 892] x 100 = -90.92%
Formula
Percentage change = [(81 - 892) / 892] x 100
Subtract the new number by the original number
81 - 892 = -811
-811 ÷ 892 = -0.9091928251121076
-0.9091928251121076 x 100 = -90.92%