how to generate this simple report in report ms access

[learning_graccess]

I have a data similar to this :
saledate >> item >> qty
01.10.2011 >>> pen >> 23
01.10.2011 >>> pencil >> 55
02.10.2011 >> stick >> 45


03.10.2011 >> fevistick >> 25
03.10.2011 >> paper >> 55
04.10.2011 >> magic paper >> 33
04.10.2011 >> small paper >> 21

And I want output e like below : how is it possible in report?

saledate >> qty
01.10.2011 >> 78
02.10.2011 >> 45
total >> 123
03.10.2011 >> 80
04.10.2011 >> 54
total >> 134

i dont know anything about access or report...please let me know how to start off also...thanks

[June7]

This is a Totals (aggregate) output. Use the report Grouping & Sorting with aggregate calcs in header/footer sections. Access Help as guidelines on building reports with these features. Search Help on topic: report grouping sorting

Or Google it. Here is one http://office.microsoft.com/en-us/ac...010006894.aspx

What criteria determines the subtotals? Why add Jan and Feb then Mar and Apr? You want a subtotal for every two months? This will be tricky.