Physical inventory by Inventory Dimension Report

hi experts,
I want to add New Field (UnitPrice) in Physical Inventory By inventory Dimension Report.

{Inventory Management >> Reports >>Physical Inventory By inventory Dimension}

I want to know how can we add new field in this report ??? It’s design is auto design
And what changes are apply on ClassDP To get UnitPrice???

I’m not able to understand how to made changes in this report
please Guide me