Tax Value not flowing to NET Value

Dear Guru's

I am facing a problem in TAXINN, Tax amount is visible and updating at item level but at header level value is not getting added up. For example

Base price = 100

BEDECessShecess = 14.42

LST Or Vat = 14.40 on 114.42

net value in item level showing 114.42 and tax 14.40, but when i go back and see the header level Net value it is showing 114.42 instead of 128.82.

All the setting are checked through a search in SDN and done the corrections still not coming.

Regards,

Sudhir