254.55% is the change from 220 to 780
Calculation steps:
[( 780 - 220 ) ÷ 220] x 100 = 254.55%
Formula
Percentage change = [(780 - 220) / 220] x 100
Subtract the new number by the original number
780 - 220 = 560
560 ÷ 220 = 2.5454545454545454
2.5454545454545454 x 100 = 254.55%