-51.89% is the change from 582 to 280
Calculation steps:
[( 280 - 582 ) ÷ 582] x 100 = -51.89%
Formula
Percentage change = [(280 - 582) / 582] x 100
Subtract the new number by the original number
280 - 582 = -302
-302 ÷ 582 = -0.5189003436426117
-0.5189003436426117 x 100 = -51.89%