47.86% is the change from 420 to 621
Calculation steps:
[( 621 - 420 ) ÷ 420] x 100 = 47.86%
Formula
Percentage change = [(621 - 420) / 420] x 100
Subtract the new number by the original number
621 - 420 = 201
201 ÷ 420 = 0.4785714285714286
0.4785714285714286 x 100 = 47.86%