638.38% is the change from 99 to 731
Calculation steps:
[( 731 - 99 ) ÷ 99] x 100 = 638.38%
Formula
Percentage change = [(731 - 99) / 99] x 100
Subtract the new number by the original number
731 - 99 = 632
632 ÷ 99 = 6.383838383838384
6.383838383838384 x 100 = 638.38%