-13.36% is the change from 584 to 506
Calculation steps:
[( 506 - 584 ) ÷ 584] x 100 = -13.36%
Formula
Percentage change = [(506 - 584) / 584] x 100
Subtract the new number by the original number
506 - 584 = -78
-78 ÷ 584 = -0.13356164383561644
-0.13356164383561644 x 100 = -13.36%