-27.64% is the change from 398 to 288
Calculation steps:
[( 288 - 398 ) ÷ 398] x 100 = -27.64%
Formula
Percentage change = [(288 - 398) / 398] x 100
Subtract the new number by the original number
288 - 398 = -110
-110 ÷ 398 = -0.27638190954773867
-0.27638190954773867 x 100 = -27.64%