Crosstab mean price not working

[bbduc]

Could any one help,
How to insert the the mean price per peice into a crosstab?
Please help
Here an example of my cross tab I would like

Parts Qte
Price
1Jan 2Feb
A1 12 20
$12 $10
A2 10 13
$10 $23
$/P $1 $1 <--- I am not able to get the good result
it should calculate the end total$/end
total qte
Row --> Part number
Column --> Month
Data ---> Qte
Price

Thanks for any help

Bd