Is your feature request related to a problem? Please describe.
When scanning for undercuts, I'd also like to know if it's actually worth to cancel the item and repost it by having a quick look at the deposit cost of that item. Sometimes it's worth it to just leave it up and hope it still sells later if the deposit cost is high.

Describe the solution you'd like
For an extra column to be added to the Cancelling-tab called "Deposit" that shows how much the deposit cost is of that item/commodity.

Additional context
I understand that there may be some limitations in the WoW API that prevents checking the deposit cost under certain circumstances. If this is the case here as well, how about storing the last registered deposit cost when the user last posted an item? That way you could do an internal lookup of deposit costs.