-8.79% is the change from 580 to 529
Calculation steps:
[( 529 - 580 ) ÷ 580] x 100 = -8.79%
Formula
Percentage change = [(529 - 580) / 580] x 100
Subtract the new number by the original number
529 - 580 = -51
-51 ÷ 580 = -0.08793103448275862
-0.08793103448275862 x 100 = -8.79%