-12.5% is the change from 584 to 511
Calculation steps:
[( 511 - 584 ) ÷ 584] x 100 = -12.5%
Formula
Percentage change = [(511 - 584) / 584] x 100
Subtract the new number by the original number
511 - 584 = -73
-73 ÷ 584 = -0.125
-0.125 x 100 = -12.5%