Calculate cell with cell above

[BlindPro]

Hi,
Please I need help, I am working on big database, and now %85 Done, But I have problem, How can I calculate cell with cell above in Query??

Look at this image:

1st Record = 600
2nd Record = 600 + 600 = 1200
3rd Record = 1200 + 500 = 1700
4th Record = 1700 + -200 = 1500
5th Record = 1500 + 400 = 1900
6th Record = 1900 + 400 = 2300

Please Help, I MUST Do it

 

[John Big Booty]

Dude you already have a thread going on this subject please do not double post.