-51.64% is the change from 579 to 280
Calculation steps:
[( 280 - 579 ) ÷ 579] x 100 = -51.64%
Formula
Percentage change = [(280 - 579) / 579] x 100
Subtract the new number by the original number
280 - 579 = -299
-299 ÷ 579 = -0.5164075993091537
-0.5164075993091537 x 100 = -51.64%