-79.79% is the change from 579 to 117
Calculation steps:
[( 117 - 579 ) ÷ 579] x 100 = -79.79%
Formula
Percentage change = [(117 - 579) / 579] x 100
Subtract the new number by the original number
117 - 579 = -462
-462 ÷ 579 = -0.7979274611398963
-0.7979274611398963 x 100 = -79.79%