39.21% is the change from 584 to 813
Calculation steps:
[( 813 - 584 ) ÷ 584] x 100 = 39.21%
Formula
Percentage change = [(813 - 584) / 584] x 100
Subtract the new number by the original number
813 - 584 = 229
229 ÷ 584 = 0.3921232876712329
0.3921232876712329 x 100 = 39.21%