852.38% is the change from 84 to 800
Calculation steps:
[( 800 - 84 ) ÷ 84] x 100 = 852.38%
Formula
Percentage change = [(800 - 84) / 84] x 100
Subtract the new number by the original number
800 - 84 = 716
716 ÷ 84 = 8.523809523809524
8.523809523809524 x 100 = 852.38%