-16.58% is the change from 585 to 488
Calculation steps:
[( 488 - 585 ) ÷ 585] x 100 = -16.58%
Formula
Percentage change = [(488 - 585) / 585] x 100
Subtract the new number by the original number
488 - 585 = -97
-97 ÷ 585 = -0.1658119658119658
-0.1658119658119658 x 100 = -16.58%