25.29% is the change from 340 to 426
Calculation steps:
[( 426 - 340 ) ÷ 340] x 100 = 25.29%
Formula
Percentage change = [(426 - 340) / 340] x 100
Subtract the new number by the original number
426 - 340 = 86
86 ÷ 340 = 0.2529411764705882
0.2529411764705882 x 100 = 25.29%