How to configure price according to customer roles

Thanks in advance.

I want to apply price according to customer roles.
For example
There are 2 roles
** Basic-Membership
** Premier-Membership

I want that if customer is related to basic-membership then product price is equal to
Product Price=Actual Price + (25% extra)

if customer is related to Premier-membership then
Product Price=Actual Price;

Please suggest me better solution for this. I can change in code files also.

Thanks
Shyam Agarwal

Why not set Basic price to actual price and create 25% discount and apply it to the Premier role.

Thanks for your quick reply.
Two roles is simply an example. In my scenario there are multiple roles. and price will differ according to role.
For example i have a membership hierarchy such as basic membership,silver membership, gold membership
and price will differ according to membership a customer have.
for example
Price for basic user
Final Price=Actual price+(25% extra)
Price for silver user
Final Price =Actual Price+(12% extra)
Price for gold user
Final Price=Actual Price -(discount)

I still think you should try to handle it via roles and discounts.