49.52% is the change from 420 to 628
Calculation steps:
[( 628 - 420 ) ÷ 420] x 100 = 49.52%
Formula
Percentage change = [(628 - 420) / 420] x 100
Subtract the new number by the original number
628 - 420 = 208
208 ÷ 420 = 0.49523809523809526
0.49523809523809526 x 100 = 49.52%