how to Increase Price after migo

Hi

You can easily achieve your requirement by posting a Subsequent Debit Note in MIRO which will be added to your inventory value only not in the Qty(depends on available qty)

Please check the below link for detail understanding on Dr/Cr Notes in MIRO.

http://help.sap.com/saphelp_erp2004/helpdata/en/a8/b9970b452b11d189430000e829fbbd/content.htm

Regards,
Anoop Singh