-43.75% is the change from 512 to 288
Calculation steps:
[( 288 - 512 ) ÷ 512] x 100 = -43.75%
Formula
Percentage change = [(288 - 512) / 512] x 100
Subtract the new number by the original number
288 - 512 = -224
-224 ÷ 512 = -0.4375
-0.4375 x 100 = -43.75%