-15.54% is the change from 811 to 685
Calculation steps:
[( 685 - 811 ) ÷ 811] x 100 = -15.54%
Formula
Percentage change = [(685 - 811) / 811] x 100
Subtract the new number by the original number
685 - 811 = -126
-126 ÷ 811 = -0.15536374845869297
-0.15536374845869297 x 100 = -15.54%