-11.26% is the change from 586 to 520
Calculation steps:
[( 520 - 586 ) ÷ 586] x 100 = -11.26%
Formula
Percentage change = [(520 - 586) / 586] x 100
Subtract the new number by the original number
520 - 586 = -66
-66 ÷ 586 = -0.11262798634812286
-0.11262798634812286 x 100 = -11.26%