48.12% is the change from 399 to 591
Calculation steps:
[( 591 - 399 ) ÷ 399] x 100 = 48.12%
Formula
Percentage change = [(591 - 399) / 399] x 100
Subtract the new number by the original number
591 - 399 = 192
192 ÷ 399 = 0.48120300751879697
0.48120300751879697 x 100 = 48.12%