860.71% is the change from 84 to 807
Calculation steps:
[( 807 - 84 ) ÷ 84] x 100 = 860.71%
Formula
Percentage change = [(807 - 84) / 84] x 100
Subtract the new number by the original number
807 - 84 = 723
723 ÷ 84 = 8.607142857142858
8.607142857142858 x 100 = 860.71%