-15.29% is the change from 811 to 687
Calculation steps:
[( 687 - 811 ) ÷ 811] x 100 = -15.29%
Formula
Percentage change = [(687 - 811) / 811] x 100
Subtract the new number by the original number
687 - 811 = -124
-124 ÷ 811 = -0.15289765721331688
-0.15289765721331688 x 100 = -15.29%