46.37% is the change from 399 to 584
Calculation steps:
[( 584 - 399 ) ÷ 399] x 100 = 46.37%
Formula
Percentage change = [(584 - 399) / 399] x 100
Subtract the new number by the original number
584 - 399 = 185
185 ÷ 399 = 0.46365914786967416
0.46365914786967416 x 100 = 46.37%