127.14% is the change from 339 to 770
Calculation steps:
[( 770 - 339 ) ÷ 339] x 100 = 127.14%
Formula
Percentage change = [(770 - 339) / 339] x 100
Subtract the new number by the original number
770 - 339 = 431
431 ÷ 339 = 1.2713864306784661
1.2713864306784661 x 100 = 127.14%