50.59% is the change from 423 to 637
Calculation steps:
[( 637 - 423 ) ÷ 423] x 100 = 50.59%
Formula
Percentage change = [(637 - 423) / 423] x 100
Subtract the new number by the original number
637 - 423 = 214
214 ÷ 423 = 0.5059101654846335
0.5059101654846335 x 100 = 50.59%