Hi @labelc-boutique displaying a lower “per unit” price on the product page while still charging the full bundle amount at checkout is actually a very popular setup because it makes bundle pricing feel much more attractive and easier for customers to understand. Easify Box Bundle Builder BYOB can handle this type of workflow quite nicely.
Then, I’ve created a similar demo to help you better visualize how it works:
Inside the app, you can first create a new box and choose the box type that best fits your setup. For fixed bundle packs such as 3-pack, 6-pack, or 12-pack products, the Predefined Box Size type usually works very well.
After that, you simply add the products you want to include in the bundle.
To configure pricing and the unit-price display, you can open the Discount & Subscription section and set up the Quantity, Price, and Badge for each bundle size.
For example, you could add badges like “$8.00/cup” or “Only $5 per piece” so customers see the unit pricing directly on the product page, making the offer feel more appealing visually. 
If you prefer not to display the total bundle price directly inside the bundle widget, you can also go to Elements to show and simply disable the Price element.
Even if the product page mainly highlights the unit pricing or custom badge text, once customers add the bundle to cart and proceed to checkout, Shopify will still calculate and display the full bundle total normally.
The setup process is also quite straightforward and beginner-friendly. The app is designed to help merchants build bundle packs, volume offers, and bundle pricing layouts without needing custom coding or complicated theme edits.