52.27% is the change from 419 to 638
Calculation steps:
[( 638 - 419 ) ÷ 419] x 100 = 52.27%
Formula
Percentage change = [(638 - 419) / 419] x 100
Subtract the new number by the original number
638 - 419 = 219
219 ÷ 419 = 0.522673031026253
0.522673031026253 x 100 = 52.27%