270.19% is the change from 208 to 770
Calculation steps:
[( 770 - 208 ) ÷ 208] x 100 = 270.19%
Formula
Percentage change = [(770 - 208) / 208] x 100
Subtract the new number by the original number
770 - 208 = 562
562 ÷ 208 = 2.701923076923077
2.701923076923077 x 100 = 270.19%