Pricing Query

Dear Experts,

Need help in achieving the below requirement of pricing.

Model:

Mobile Service

   Subscription (Max=1)  - Subscription 1

                                      Subscription 2

                                      Subscription 3

  Value Added Services   - Cell Phone 1

Requirement:

Cell Phone 1 Price Should be 10% Discount when Selected with Subscription 1

Cell Phone 1 Price Should be 20% Discount when Selected with Subscription 2

Cell Phone 1 Price Should be 30% Discount when Selected with Subscription 3

Note: I Can take More Than 1 Mobile Service in Quote.

Quote:

Mobile Service

  Subscription 1

  Cell Phone 1

Mobile Service

  Subscription 2

  Cell Phone 1

Mobile Service

  Subscription 3

  Cell Phone 1

Cell Phone 1 Price should be calculated as per the subscription. How can i achieve this with out of box pricing rules ?