“Marrowwalk Boneweave Boots” Durability 13 of 16 → repair costs 357.886 Gold. I beleave that this cant be correct.
Do you have items in your stash that need to be repaired? Unfortunately, those items are all factored in.
Also, check to see if there are items that have other class skill charges. That also drastically increases the cost of repairs.
If none of these are an issue - Yes, 300k+ is way too high.
Yeah it’s skill charges that increase the repair costs.