Viewing raw material cost in different units

Hi,

I'm relatively new to SAP so apologies if this is really simple.

Just trying to find how to view the cost for a material in a unit of measure other than its base unit.

For example we buy ham in rolls for $27/roll. I know each roll weighs 5kg and I can do the calculation manually but I feel there should be a simple way to view the price/kg in SAP.

Which transaction code would use to find this?

Thanks