-39.33% is the change from 478 to 290
Calculation steps:
[( 290 - 478 ) ÷ 478] x 100 = -39.33%
Formula
Percentage change = [(290 - 478) / 478] x 100
Subtract the new number by the original number
290 - 478 = -188
-188 ÷ 478 = -0.39330543933054396
-0.39330543933054396 x 100 = -39.33%