49.53% is the change from 422 to 631
Calculation steps:
[( 631 - 422 ) ÷ 422] x 100 = 49.53%
Formula
Percentage change = [(631 - 422) / 422] x 100
Subtract the new number by the original number
631 - 422 = 209
209 ÷ 422 = 0.495260663507109
0.495260663507109 x 100 = 49.53%