-85.2% is the change from 811 to 120
Calculation steps:
[( 120 - 811 ) ÷ 811] x 100 = -85.2%
Formula
Percentage change = [(120 - 811) / 811] x 100
Subtract the new number by the original number
120 - 811 = -691
-691 ÷ 811 = -0.8520345252774353
-0.8520345252774353 x 100 = -85.2%