903.03% is the change from 99 to 993
Calculation steps:
[( 993 - 99 ) ÷ 99] x 100 = 903.03%
Formula
Percentage change = [(993 - 99) / 99] x 100
Subtract the new number by the original number
993 - 99 = 894
894 ÷ 99 = 9.030303030303031
9.030303030303031 x 100 = 903.03%