How should the PPV (Purchase Price Variance )be handled in Materials Management (SAP MM)

Hi SAP,

We don’t have Material master. We create Purchase orders directly for expenses. When there is a difference in the cost between the time of PO creation and Invoice creation, how should the PPV (Purchase Price Variance) be handled?

Say for example PO cost was $100 and the cost increased to $103 at the time of invoicing. How should be post the $3 as PPV?

Regards,

Bhaskar Reddy.S