Semi additive measures in ssas standard version

Hi,

I am using Sql server 2008 r2 standard version. in this i developed a cube.

i am facing issues while applying semi additive measures to columns.

i have measures table and  product,customer,time dimensions table. in measures we have one column price of product. when we generate report all price values are showed in total. but we want to show the each product price separately.

example:  product "A" price is 100 and a customer buys product quantity two,  total amount will be 200  but it shows price also 200. but we want to show as 100.

how can we achieve semi additive measures in sql server 2008 r2 standard version.

can you please help to solve the issue.

Thanks in Advance

Chandra