310.91% is the change from 220 to 904
Calculation steps:
[( 904 - 220 ) ÷ 220] x 100 = 310.91%
Formula
Percentage change = [(904 - 220) / 220] x 100
Subtract the new number by the original number
904 - 220 = 684
684 ÷ 220 = 3.109090909090909
3.109090909090909 x 100 = 310.91%