50.47% is the change from 426 to 641
Calculation steps:
[( 641 - 426 ) ÷ 426] x 100 = 50.47%
Formula
Percentage change = [(641 - 426) / 426] x 100
Subtract the new number by the original number
641 - 426 = 215
215 ÷ 426 = 0.5046948356807511
0.5046948356807511 x 100 = 50.47%