-81.13% is the change from 811 to 153
Calculation steps:
[( 153 - 811 ) ÷ 811] x 100 = -81.13%
Formula
Percentage change = [(153 - 811) / 811] x 100
Subtract the new number by the original number
153 - 811 = -658
-658 ÷ 811 = -0.8113440197287299
-0.8113440197287299 x 100 = -81.13%