55.16% is the change from 426 to 661
Calculation steps:
[( 661 - 426 ) ÷ 426] x 100 = 55.16%
Formula
Percentage change = [(661 - 426) / 426] x 100
Subtract the new number by the original number
661 - 426 = 235
235 ÷ 426 = 0.5516431924882629
0.5516431924882629 x 100 = 55.16%