-12.12% is the change from 586 to 515
Calculation steps:
[( 515 - 586 ) ÷ 586] x 100 = -12.12%
Formula
Percentage change = [(515 - 586) / 586] x 100
Subtract the new number by the original number
515 - 586 = -71
-71 ÷ 586 = -0.12116040955631399
-0.12116040955631399 x 100 = -12.12%