40.14% is the change from 426 to 597
Calculation steps:
[( 597 - 426 ) ÷ 426] x 100 = 40.14%
Formula
Percentage change = [(597 - 426) / 426] x 100
Subtract the new number by the original number
597 - 426 = 171
171 ÷ 426 = 0.4014084507042254
0.4014084507042254 x 100 = 40.14%