39.24% is the change from 446 to 621
Calculation steps:
[( 621 - 446 ) ÷ 446] x 100 = 39.24%
Formula
Percentage change = [(621 - 446) / 446] x 100
Subtract the new number by the original number
621 - 446 = 175
175 ÷ 446 = 0.3923766816143498
0.3923766816143498 x 100 = 39.24%