Display of a unit price

I have a problem. I would like to sell wine boxes of 3 bottles and 6 bottles. Each of these boxes has its own price. Therefore, I created two product variants. One for the 3-bottle box and one for the 6-bottle box, each with its own price. However, I would like to display the unit price per bottle for this product, which is made up of two box variants, but currently the system displays the price of the first box (the 3-bottle variant). Does anyone have a solution?