-18.6% is the change from 586 to 477
Calculation steps:
[( 477 - 586 ) ÷ 586] x 100 = -18.6%
Formula
Percentage change = [(477 - 586) / 586] x 100
Subtract the new number by the original number
477 - 586 = -109
-109 ÷ 586 = -0.18600682593856654
-0.18600682593856654 x 100 = -18.6%