-17.34% is the change from 398 to 329
Calculation steps:
[( 329 - 398 ) ÷ 398] x 100 = -17.34%
Formula
Percentage change = [(329 - 398) / 398] x 100
Subtract the new number by the original number
329 - 398 = -69
-69 ÷ 398 = -0.17336683417085427
-0.17336683417085427 x 100 = -17.34%