How get subtotal in Ms Access-?

Question

I have two table from two different source having Account no. and their amount in each table. I have to compare both table and have to find Matched and Umatched data in another table.
Can any one help me .........thanks in advance...I have to get subtotal first then have to compare the table

Question like this
source I Source II
Account Amount Account Amount
001 500 001 500
002 700 002 700
002 800 002 800
005 1000 007 1200
008 1200 008 1500
008 300 009 2500

Answer 1

Sorry, not a tax question. Please re-post in the Computers area.