984.34% is the change from 83 to 900
Calculation steps:
[( 900 - 83 ) ÷ 83] x 100 = 984.34%
Formula
Percentage change = [(900 - 83) / 83] x 100
Subtract the new number by the original number
900 - 83 = 817
817 ÷ 83 = 9.843373493975903
9.843373493975903 x 100 = 984.34%