-83.42% is the change from 585 to 97
Calculation steps:
[( 97 - 585 ) ÷ 585] x 100 = -83.42%
Formula
Percentage change = [(97 - 585) / 585] x 100
Subtract the new number by the original number
97 - 585 = -488
-488 ÷ 585 = -0.8341880341880342
-0.8341880341880342 x 100 = -83.42%