-94.65% is the change from 579 to 31
Calculation steps:
[( 31 - 579 ) ÷ 579] x 100 = -94.65%
Formula
Percentage change = [(31 - 579) / 579] x 100
Subtract the new number by the original number
31 - 579 = -548
-548 ÷ 579 = -0.9464594127806563
-0.9464594127806563 x 100 = -94.65%