-44.56% is the change from 579 to 321
Calculation steps:
[( 321 - 579 ) ÷ 579] x 100 = -44.56%
Formula
Percentage change = [(321 - 579) / 579] x 100
Subtract the new number by the original number
321 - 579 = -258
-258 ÷ 579 = -0.44559585492227977
-0.44559585492227977 x 100 = -44.56%