1078.57% is the change from 84 to 990
Calculation steps:
[( 990 - 84 ) ÷ 84] x 100 = 1078.57%
Formula
Percentage change = [(990 - 84) / 84] x 100
Subtract the new number by the original number
990 - 84 = 906
906 ÷ 84 = 10.785714285714286
10.785714285714286 x 100 = 1078.57%