Yes it is possible you can use the Method SubscriptionResourcesListGet_API. You need to pass the subscription id then you will get an array that contains all price details including plan details
Note: i think in this case while creating the storefront that time you must add same fees
in resource rates tab and subscription plans. Amount enter in the subscription plan will come inside storefront and Fees entered in the Resource rate tab will get inside code.so better give same
amount in both tab.
Please Refer the following link
http://download.pa.parallels.com/pba/5.4/doc/58500.htm#o58502