837.93% is the change from 87 to 816
Calculation steps:
[( 816 - 87 ) ÷ 87] x 100 = 837.93%
Formula
Percentage change = [(816 - 87) / 87] x 100
Subtract the new number by the original number
816 - 87 = 729
729 ÷ 87 = 8.379310344827585
8.379310344827585 x 100 = 837.93%