12.5% is the change from 584 to 657
Calculation steps:
[( 657 - 584 ) ÷ 584] x 100 = 12.5%
Formula
Percentage change = [(657 - 584) / 584] x 100
Subtract the new number by the original number
657 - 584 = 73
73 ÷ 584 = 0.125
0.125 x 100 = 12.5%
Example