-81.17% is the change from 579 to 109
Calculation steps:
[( 109 - 579 ) ÷ 579] x 100 = -81.17%
Formula
Percentage change = [(109 - 579) / 579] x 100
Subtract the new number by the original number
109 - 579 = -470
-470 ÷ 579 = -0.8117443868739206
-0.8117443868739206 x 100 = -81.17%