878.57% is the change from 84 to 822
Calculation steps:
[( 822 - 84 ) ÷ 84] x 100 = 878.57%
Formula
Percentage change = [(822 - 84) / 84] x 100
Subtract the new number by the original number
822 - 84 = 738
738 ÷ 84 = 8.785714285714286
8.785714285714286 x 100 = 878.57%