-50% is the change from 576 to 288
Calculation steps:
[( 288 - 576 ) ÷ 576] x 100 = -50%
Formula
Percentage change = [(288 - 576) / 576] x 100
Subtract the new number by the original number
288 - 576 = -288
-288 ÷ 576 = -0.5
-0.5 x 100 = -50%
Example