121.26% is the change from 348 to 770
Calculation steps:
[( 770 - 348 ) ÷ 348] x 100 = 121.26%
Formula
Percentage change = [(770 - 348) / 348] x 100
Subtract the new number by the original number
770 - 348 = 422
422 ÷ 348 = 1.2126436781609196
1.2126436781609196 x 100 = 121.26%