-90.33% is the change from 579 to 56
Calculation steps:
[( 56 - 579 ) ÷ 579] x 100 = -90.33%
Formula
Percentage change = [(56 - 579) / 579] x 100
Subtract the new number by the original number
56 - 579 = -523
-523 ÷ 579 = -0.9032815198618307
-0.9032815198618307 x 100 = -90.33%