-79.16% is the change from 811 to 169
Calculation steps:
[( 169 - 811 ) ÷ 811] x 100 = -79.16%
Formula
Percentage change = [(169 - 811) / 811] x 100
Subtract the new number by the original number
169 - 811 = -642
-642 ÷ 811 = -0.7916152897657214
-0.7916152897657214 x 100 = -79.16%