How to calculate monthly booked value in asset?

Dear Experts,

i have a query in asset accounting. we are developing a report in asset for calculating month till date and year till date value of asset under project or w/o project.

Can anybody tell me the logic and fields and table for find out the monthly value of an asset means how much cost/expense booked for an asset under project or for asset w/o project?

Regards

Arun