220.19% is the change from 208 to 666
Calculation steps:
[( 666 - 208 ) ÷ 208] x 100 = 220.19%
Formula
Percentage change = [(666 - 208) / 208] x 100
Subtract the new number by the original number
666 - 208 = 458
458 ÷ 208 = 2.201923076923077
2.201923076923077 x 100 = 220.19%