14.54% is the change from 399 to 457
Calculation steps:
[( 457 - 399 ) ÷ 399] x 100 = 14.54%
Formula
Percentage change = [(457 - 399) / 399] x 100
Subtract the new number by the original number
457 - 399 = 58
58 ÷ 399 = 0.14536340852130325
0.14536340852130325 x 100 = 14.54%