49.88% is the change from 423 to 634
Calculation steps:
[( 634 - 423 ) ÷ 423] x 100 = 49.88%
Formula
Percentage change = [(634 - 423) / 423] x 100
Subtract the new number by the original number
634 - 423 = 211
211 ÷ 423 = 0.4988179669030733
0.4988179669030733 x 100 = 49.88%