-40.08% is the change from 479 to 287
Calculation steps:
[( 287 - 479 ) ÷ 479] x 100 = -40.08%
Formula
Percentage change = [(287 - 479) / 479] x 100
Subtract the new number by the original number
287 - 479 = -192
-192 ÷ 479 = -0.40083507306889354
-0.40083507306889354 x 100 = -40.08%