-6.57% is the change from 868 to 811
Calculation steps:
[( 811 - 868 ) ÷ 868] x 100 = -6.57%
Formula
Percentage change = [(811 - 868) / 868] x 100
Subtract the new number by the original number
811 - 868 = -57
-57 ÷ 868 = -0.06566820276497695
-0.06566820276497695 x 100 = -6.57%