-51.81% is the change from 581 to 280
Calculation steps:
[( 280 - 581 ) ÷ 581] x 100 = -51.81%
Formula
Percentage change = [(280 - 581) / 581] x 100
Subtract the new number by the original number
280 - 581 = -301
-301 ÷ 581 = -0.5180722891566265
-0.5180722891566265 x 100 = -51.81%