26.02% is the change from 342 to 431
Calculation steps:
[( 431 - 342 ) ÷ 342] x 100 = 26.02%
Formula
Percentage change = [(431 - 342) / 342] x 100
Subtract the new number by the original number
431 - 342 = 89
89 ÷ 342 = 0.260233918128655
0.260233918128655 x 100 = 26.02%