How to enter a Return Sales Order with same price and tax as on original Sales Order

Current Behavior of the System (Problem Statement):

Currently, when we enter return sales order, by providing reference to the original sales order or its invoices (in return Tab on order entry form), the pricing and tax engine calculate Unit List Price, Unit Selling Price and Tax, which is applicable at the time of entry of return sales order.

Our required/Expected Behaviour:

We want that whenever we enter the return sales order, its value (extended price and tax) must equal to the original sales order which is being returned (Of course, Return Order will be in minus).

Example

For example we enter one sales order in APR-16 for Qty 1, Unit Selling Price is 100, Tax value is 10; so Order totals to 110 (Price plus Tax). Order is booked and shipped.