989.16% is the change from 83 to 904
Calculation steps:
[( 904 - 83 ) ÷ 83] x 100 = 989.16%
Formula
Percentage change = [(904 - 83) / 83] x 100
Subtract the new number by the original number
904 - 83 = 821
821 ÷ 83 = 9.891566265060241
9.891566265060241 x 100 = 989.16%