-5.37% is the change from 857 to 811
Calculation steps:
[( 811 - 857 ) ÷ 857] x 100 = -5.37%
Formula
Percentage change = [(811 - 857) / 857] x 100
Subtract the new number by the original number
811 - 857 = -46
-46 ÷ 857 = -0.05367561260210035
-0.05367561260210035 x 100 = -5.37%