128.07% is the change from 342 to 780
Calculation steps:
[( 780 - 342 ) ÷ 342] x 100 = 128.07%
Formula
Percentage change = [(780 - 342) / 342] x 100
Subtract the new number by the original number
780 - 342 = 438
438 ÷ 342 = 1.280701754385965
1.280701754385965 x 100 = 128.07%