-86.42% is the change from 589 to 80
Calculation steps:
[( 80 - 589 ) ÷ 589] x 100 = -86.42%
Formula
Percentage change = [(80 - 589) / 589] x 100
Subtract the new number by the original number
80 - 589 = -509
-509 ÷ 589 = -0.8641765704584041
-0.8641765704584041 x 100 = -86.42%