834.48% is the change from 87 to 813
Calculation steps:
[( 813 - 87 ) ÷ 87] x 100 = 834.48%
Formula
Percentage change = [(813 - 87) / 87] x 100
Subtract the new number by the original number
813 - 87 = 726
726 ÷ 87 = 8.344827586206897
8.344827586206897 x 100 = 834.48%