-51.3% is the change from 575 to 280
Calculation steps:
[( 280 - 575 ) ÷ 575] x 100 = -51.3%
Formula
Percentage change = [(280 - 575) / 575] x 100
Subtract the new number by the original number
280 - 575 = -295
-295 ÷ 575 = -0.5130434782608696
-0.5130434782608696 x 100 = -51.3%