The price loaded in an asset is based on the price mentioned in its Price List Item. As an administrator, you can decide if you want to retain the asset price or set the new base price in the further transactions on the Installed Products page. A workflow is used to set the the above actions for the asset pricing. If the IsAssetPricing field of the Line Item object is set to True, the system retains the price of the Asset Line Items for any future renewals or amendments.
For example, the pricing for a cell phone plan has increased from $20 to $30 per month, and the Price List Item record is updated to reflect the new list price. However, the selling company has decided that customers who already have the product installed as an asset will not be charged the new price for renewals, amendments, etc. These customers shall be allowed to purchase the same subscription at the base price at which they purchased it originally.
You must create a Workflow Rule for the Line Item object, as described in the Salesforce Documentation.
For the Workflow actions,
Set the IsAssetPricing check box to True.
Set the formula for Base Price (depending on your requirement).
Ensure that all the Options products of your Bundle follow the Asset Pricing if you have configured a Workflow Rule.