1021.69% is the change from 83 to 931
Calculation steps:
[( 931 - 83 ) ÷ 83] x 100 = 1021.69%
Formula
Percentage change = [(931 - 83) / 83] x 100
Subtract the new number by the original number
931 - 83 = 848
848 ÷ 83 = 10.216867469879517
10.216867469879517 x 100 = 1021.69%