Hi Julie,
1. You can use transaction MB51...here give the material, plant and movement types based on the material type. for ex: if it is a raw material you can give 261, 201...and finally give the period for which you want to see the data.. then download in to excel and try to average it by the no of days...
2. You can use the transaction MCRE also
3. You can check with Material master M003 go to additional data tab select consumption then total consumption , here u can see the material consumption month wise.
Hope this helps...
Thanks
Kumar