50.83% is the change from 303 to 457
Calculation steps:
[( 457 - 303 ) ÷ 303] x 100 = 50.83%
Formula
Percentage change = [(457 - 303) / 303] x 100
Subtract the new number by the original number
457 - 303 = 154
154 ÷ 303 = 0.5082508250825083
0.5082508250825083 x 100 = 50.83%