My items show a shipping cost 1c less than reality?

Yes, seems to show like that on all of your listings with that shipping rate. Your other shipping rates seem to be fine, just that one. Might pay to edit the shipping template to refresh it so buyers don't get confused.

Have you changed your shipping template Callum? I see a listing using that template listed 30 mins ago is now showing correctly 4301877231, but others existing are still showing incorrectly. They may come right as they close and relist with the template refresh maybe. Incidenrtally, another listing 10 mins earlier than the one here shows 4.59. I just did a sort by latest listings to check.

Ah. I see the one that's showing correctly here is using a different template as the first line is 

Nationwide, Express Urban $4.60

That one is using an old style template as it's an auction rather than a MQL and of course doesn't show the delivery in 2 days to Auckland, or whatever.

Where the one that are showing 4.59 when they should be showing $4.60 say
Nationwide 1-2 days, Express Urban    $4.60

Update. Ok, it's definitely a Trademe problem, nothing you can do about it, other than fudging to get around it.

Lucy, if you could pass this on.

I made some changes to a MQL and a new shipping template.

If I set the shipping price as $4.50 it shows correctly on browse and in auction.

If I set to $4.60 it shows incorrectly as $4.59 on browse but correctly in the auction.

If I set to $4.70 it shows correctly on browse and in auction.

Thanks Gary and Callum. I'll get this bug reported and investigated.

Thanks guys. You went above and beyond doing some testing there Gary.

Good one Lucy. It's not good to be showing one shipping cost when searching, then seeing it's different in the auction. Even though it's just 1c difference, it's a bit off putting. Hopefully it's not a widespread bug.