21.22% is the change from 377 to 457
Calculation steps:
[( 457 - 377 ) ÷ 377] x 100 = 21.22%
Formula
Percentage change = [(457 - 377) / 377] x 100
Subtract the new number by the original number
457 - 377 = 80
80 ÷ 377 = 0.21220159151193635
0.21220159151193635 x 100 = 21.22%