if Backorder add Fee to Total

[ Moderator note: moved to Fixing WordPress. ]

Hello everyone,

I’m at the final stage of my website, but I need to add a fee if a Backorder product is selected. I already have some products showing up as Backorder already for testing purposes.

If the product is added as a Backorder, I would like to add a fee to the total.

So when the user goes to View Cart, it’ll show an extra fee for backorder, and on the checkout page it’ll show the summary with the Backorder Fee and total.

I attached a screenshot Mockup I did in Photoshop to show you what I mean.

Thank you for anyones help on this. I’m literally stuck.

Warm regards,
Mike