38.91% is the change from 329 to 457
Calculation steps:
[( 457 - 329 ) ÷ 329] x 100 = 38.91%
Formula
Percentage change = [(457 - 329) / 329] x 100
Subtract the new number by the original number
457 - 329 = 128
128 ÷ 329 = 0.3890577507598784
0.3890577507598784 x 100 = 38.91%