-16.05% is the change from 816 to 685
Calculation steps:
[( 685 - 816 ) ÷ 816] x 100 = -16.05%
Formula
Percentage change = [(685 - 816) / 816] x 100
Subtract the new number by the original number
685 - 816 = -131
-131 ÷ 816 = -0.16053921568627452
-0.16053921568627452 x 100 = -16.05%