-19.1% is the change from 398 to 322
Calculation steps:
[( 322 - 398 ) ÷ 398] x 100 = -19.1%
Formula
Percentage change = [(322 - 398) / 398] x 100
Subtract the new number by the original number
322 - 398 = -76
-76 ÷ 398 = -0.19095477386934673
-0.19095477386934673 x 100 = -19.1%