-79.32% is the change from 585 to 121
Calculation steps:
[( 121 - 585 ) ÷ 585] x 100 = -79.32%
Formula
Percentage change = [(121 - 585) / 585] x 100
Subtract the new number by the original number
121 - 585 = -464
-464 ÷ 585 = -0.7931623931623931
-0.7931623931623931 x 100 = -79.32%