-51.47% is the change from 577 to 280
Calculation steps:
[( 280 - 577 ) ÷ 577] x 100 = -51.47%
Formula
Percentage change = [(280 - 577) / 577] x 100
Subtract the new number by the original number
280 - 577 = -297
-297 ÷ 577 = -0.5147313691507799
-0.5147313691507799 x 100 = -51.47%