-90.26% is the change from 585 to 57
Calculation steps:
[( 57 - 585 ) ÷ 585] x 100 = -90.26%
Formula
Percentage change = [(57 - 585) / 585] x 100
Subtract the new number by the original number
57 - 585 = -528
-528 ÷ 585 = -0.9025641025641026
-0.9025641025641026 x 100 = -90.26%