Group totals of orderlines amount in ranges (i.e. "100-200", "200-300")

Hi,

I'm a newbie when it comes to SSAS and need som help:

I have 1 dimension table: Order and 1 fact-table: Orderlines. I easily manage to sum up the orderlines-amounts, but I also want to group the amount-totals in each order into amount ranges.

Example of the output:

100 - 200............. 10 orders
200 - 300..............20 orders
300 - 400..............39 orders

How do I achieve this?

regards,

Marius H Enerud