Product Cheap special price is 9988, and it's actual price was 9999. i want to show actual price 9999 and discount price 9988 in the invoice. please help me. thank you.
You should lookup in app/design/frontend/(theme_name)/default/template/email/order/items/invoice/default.phtml There should be a section with item price - it varies depending of template you use. There you are able to put the code to display regular price.
getOriginalPrice() getPrice() getDiscountAmount