I've noticed a very odd thing I thought was a bug. It might be, but after some searching, I've found information on the way enchanting versus soul gem and skill level work that suggest it might not be. I decided that the odds of it falling to an explanation justify it not being in the bugs section just yet.

I was trying some very low level (enchant 15 with petty and lesser gems) enchants on freshly smithed weapons to increase cost before selling. I always save before enchanting to see if there's enough of a significant difference for the specific enchant I want to make to justify the use of one of my enchanter potions (skill enchantments can often remain rounded down to the same with or without). I noticed the first oddity when price on the dagger of shock made with a lesser soul gem was cheaper than the one made with a petty soul gem. I always push weapon enchant slider all the way right as past experience has shown me that comparitively, the same enchantment and soul gem always adds the most with the most powerful magnitude and least charges.

Then the weird began. I remembered I had intended to take the first enchanter perk before doing so. My thought was that the price would be better for more powerful weapon. It was not. It was the same. I then noticed the price shown on the made weapons (shock damage) change after making others. I'm not talking about the new ones. The ones already made and in my inventory. I did some various case scenarios, with/without enchaner potion, with/without first perk, and the prices didn't follow any logical sense of progression at all. Then, to top it off, when I decided to make a save without spending the perk yet and just went with it and made the five daggers, I got home, saved and the prices had fallen to half their cost!

I have found the attempt to lay out the charge/use formula at UESP, but nothing that says what the impact if any is of skill level, charges, soul gem used to PRICE of item. Only other places suggesting it is higher with less total charges and the number you can get depending on skill level. If the effect is significant enough even at 15, 17, 19, 22, and those level of enchant skill, then each dagger boosting the skill by two or one point could have an impact. But to test, I looked at the price of an existing enchanted weapon and after disenchanting something else to raise it a few points, I checked again. No change.

At this point, I'm certain I'm just not seeing the connection. Does anyone understand this and why the price would alter on an item after the fact? Or even between consecutive enchants? Any help really would be appreciated, especially from anyone who has the PC version and likes to investigate the internal workings (basically the people who contribute findings to places like UESP for example).