-39.75% is the change from 478 to 288
Calculation steps:
[( 288 - 478 ) ÷ 478] x 100 = -39.75%
Formula
Percentage change = [(288 - 478) / 478] x 100
Subtract the new number by the original number
288 - 478 = -190
-190 ÷ 478 = -0.39748953974895396
-0.39748953974895396 x 100 = -39.75%