320% is the change from 220 to 924
Calculation steps:
[( 924 - 220 ) ÷ 220] x 100 = 320%
Formula
Percentage change = [(924 - 220) / 220] x 100
Subtract the new number by the original number
924 - 220 = 704
704 ÷ 220 = 3.2
3.2 x 100 = 320%
Example