57.39% is the change from 399 to 628
Calculation steps:
[( 628 - 399 ) ÷ 399] x 100 = 57.39%
Formula
Percentage change = [(628 - 399) / 399] x 100
Subtract the new number by the original number
628 - 399 = 229
229 ÷ 399 = 0.5739348370927319
0.5739348370927319 x 100 = 57.39%