-12.67% is the change from 671 to 586
Calculation steps:
[( 586 - 671 ) ÷ 671] x 100 = -12.67%
Formula
Percentage change = [(586 - 671) / 671] x 100
Subtract the new number by the original number
586 - 671 = -85
-85 ÷ 671 = -0.12667660208643816
-0.12667660208643816 x 100 = -12.67%