51.41% is the change from 426 to 645
Calculation steps:
[( 645 - 426 ) ÷ 426] x 100 = 51.41%
Formula
Percentage change = [(645 - 426) / 426] x 100
Subtract the new number by the original number
645 - 426 = 219
219 ÷ 426 = 0.5140845070422535
0.5140845070422535 x 100 = 51.41%