Finding out how much repair costs without broken equip

[v6o]

Hi, might sound like an strange question but I'm trying to find out the repair cost of items without checking the current repair cost (or current durability)

Found out the following prices through trial and error (..aka dying a couple of times) and was hoping there was some easier way.

iLv+Quality - Cost per durability in copper
200b - 335
200e - 670
213e - 722
226e - 774