-77.61% is the change from 585 to 131
Calculation steps:
[( 131 - 585 ) ÷ 585] x 100 = -77.61%
Formula
Percentage change = [(131 - 585) / 585] x 100
Subtract the new number by the original number
131 - 585 = -454
-454 ÷ 585 = -0.7760683760683761
-0.7760683760683761 x 100 = -77.61%