116.9% is the change from 355 to 770
Calculation steps:
[( 770 - 355 ) ÷ 355] x 100 = 116.9%
Formula
Percentage change = [(770 - 355) / 355] x 100
Subtract the new number by the original number
770 - 355 = 415
415 ÷ 355 = 1.1690140845070423
1.1690140845070423 x 100 = 116.9%