Hi Leo,
There is no such fields in VBAK or VBAP
Check NETWE field in VBRK or VBRP itself. It will give you the total value.
I think you are talking about NETWR but this fields stores the total values of combinations of all the Condition types excluding of Condition types of condition class Taxes.
Plz let me know if you are telling something new.
Thanks,
Suman