How to add MRP(original price) in opencart(1.5.6.4) invoice?

Opencart is not showing MRP(original price) in the invoice, it only shows the discount price . Can anybody please tell me how to do MRP Implementation in Invoice.

Thanks In Advace

what's MRP?
Ernie

Thanks for Reply!

MRP means the actual product price. Opencart Invoice only shows the discounted unit price but not the original price, i want to show the original price in the invoice with the discounted price.

No such (Manufacturers recommended List Price) Value is beeing forwarded from the Product Order Page to the Cart, the Checkout Procedure and the Invoicing, by default. Depending on the (Product Option) Mod's used, even the BASIC Value, on the Product Page, will change, if Options are selected, anyway, and is therefore not longer present, to be 'forwarded' as MRP-VALUE, in order to be used later.

MEANING: You have to get commercial Support, to get this done, and it will require a modified Product Page, a modified Cart Section, a modified Checkout Section, and a modified Invoicing Section. In addition, CONTROLLER-Files, related, eventually MODEL-Files related, and LANGUAGE Files, related, have to be modified, as well. It could be done by Use of a VqMod, or rewriting Source Files.

Just to give you some Idea on this!
Good Luck
Ernie
openshop.li/shop/

Thanks!