info about Transaction>miscellaneous transactions form that display QTY available and onhand

Hi All,

There is a form in inventory module called INVTTMTX through the path

Transaction>miscellaneous transactions>

- It displays the available and on_hand qty per item and UOM and sub_inventory -

note that qty per UOM is a must

I want to know what tables are used to calc those values?

Is there is a function to return the value?

find attached screen shot to know what I am talking about.

Thanks in advance.