-26.88% is the change from 398 to 291
Calculation steps:
[( 291 - 398 ) ÷ 398] x 100 = -26.88%
Formula
Percentage change = [(291 - 398) / 398] x 100
Subtract the new number by the original number
291 - 398 = -107
-107 ÷ 398 = -0.26884422110552764
-0.26884422110552764 x 100 = -26.88%