[Vouchers] Improve presentation of tax discounts in order summary for tax incl. in price

[drummer83]

What is the need / problem?

Improvement after openfoodfoundation/openfoodnetwork#10821 (comment) DETAIL 1.

I wasted some time during testing, wondering if the calculation of the app is incorrect. It's correct, but the presentation is very misleading (to me).

If tax is excl. from price we have two adjustments as described here as well. The values are correct but I find it very misleading to have the additional adjustment on tax. The customer can't know if the 4.00 $ in the example below is already the discounted tax or the original tax. He has to calculate himself. Why don't we do that for him by only displaying the final tax paid? I'm not sure if it's technically feasible but we could simply add the original tax and the negative tax discount and display only this result.

Which type of users does this problem affect (and how many, if known)?

• Shoppers
• TESTERS

Potential solutions that will solve the problem?

Connected wishlist and discovery discussions

Additional context

[dacook]

@rioug I suspect you'll be able to answer this quicker than I: is this update a papercut? (simple, uncontroversial change requiring less than 1/2 day dev)

[rioug]

I'd say it's not a paper cut. It would involve reworking the adjustment display on the checkout page to add additional calculation ( which maybe should be done somewhere else ) for one specific voucher scenario. If you don't know the codebase, you'll have to try understand order adjustments and voucher, which is not straight forward.