-15.04% is the change from 585 to 497
Calculation steps:
[( 497 - 585 ) ÷ 585] x 100 = -15.04%
Formula
Percentage change = [(497 - 585) / 585] x 100
Subtract the new number by the original number
497 - 585 = -88
-88 ÷ 585 = -0.15042735042735042
-0.15042735042735042 x 100 = -15.04%