205% is the change from 220 to 671
Calculation steps:
[( 671 - 220 ) ÷ 220] x 100 = 205%
Formula
Percentage change = [(671 - 220) / 220] x 100
Subtract the new number by the original number
671 - 220 = 451
451 ÷ 220 = 2.05
2.05 x 100 = 205%
Example