1022.22% is the change from 81 to 909
Calculation steps:
[( 909 - 81 ) ÷ 81] x 100 = 1022.22%
Formula
Percentage change = [(909 - 81) / 81] x 100
Subtract the new number by the original number
909 - 81 = 828
828 ÷ 81 = 10.222222222222221
10.222222222222221 x 100 = 1022.22%