837.37% is the change from 99 to 928
Calculation steps:
[( 928 - 99 ) ÷ 99] x 100 = 837.37%
Formula
Percentage change = [(928 - 99) / 99] x 100
Subtract the new number by the original number
928 - 99 = 829
829 ÷ 99 = 8.373737373737374
8.373737373737374 x 100 = 837.37%