-96.75% is the change from 585 to 19
Calculation steps:
[( 19 - 585 ) ÷ 585] x 100 = -96.75%
Formula
Percentage change = [(19 - 585) / 585] x 100
Subtract the new number by the original number
19 - 585 = -566
-566 ÷ 585 = -0.9675213675213675
-0.9675213675213675 x 100 = -96.75%