-1.37% is the change from 585 to 577
Calculation steps:
[( 577 - 585 ) ÷ 585] x 100 = -1.37%
Formula
Percentage change = [(577 - 585) / 585] x 100
Subtract the new number by the original number
577 - 585 = -8
-8 ÷ 585 = -0.013675213675213675
-0.013675213675213675 x 100 = -1.37%