-82.38% is the change from 579 to 102
Calculation steps:
[( 102 - 579 ) ÷ 579] x 100 = -82.38%
Formula
Percentage change = [(102 - 579) / 579] x 100
Subtract the new number by the original number
102 - 579 = -477
-477 ÷ 579 = -0.8238341968911918
-0.8238341968911918 x 100 = -82.38%