Help subtracting expenses

[rukazer]

Hello i need some help with a table, it goes like this:

I need to show me on A, how much money have left when the filtered data from C, the max allowed money is on E.
Sorry for bad english. The sheet is annexed.

For example, if i filter "Publicidade" on C, it show me on B all the money i spent. But i want to show also on A how much money i have left based on E

 

[rukazer]

http://pt-br.tinypic.com/r/qsnjiq/9