203.64% is the change from 220 to 668
Calculation steps:
[( 668 - 220 ) ÷ 220] x 100 = 203.64%
Formula
Percentage change = [(668 - 220) / 220] x 100
Subtract the new number by the original number
668 - 220 = 448
448 ÷ 220 = 2.036363636363636
2.036363636363636 x 100 = 203.64%