Thanks in advance for any assistance!

Worksheet 1 has:
Column A = Positions
There are 6 levels, ie: P1, P4, T9,...

Column G = Expenses, in $.

Worksheet 2 has:
A table listing the positions (same as Column A in 1st worksheet).
Also contains 'Max Spending Level' in $, in Column B.

How can I use IF & VLOOKUP nested together to:
Have it look at the Position in Column A in worksheet 1, then look at the
Expenses in Column G (worksheet 1) and see if those expenses are over the
'Max Spending Level' on the Table in the 2nd worksheet (column B), depending
on the Position in Column A in that same table?

Or, otherwise stated:
I need Worksheet 1 to reference Worksheet 2's table.
I need it to return a value of 0 if it is not over the Max Spending Level,
but if it is over, then I need it to return that value.

If I've been too verbose and not clear, please let me know. I will try
anything.
Thanks much!
- TexJen