I think I have a problem in my game with the prices merchants are buying stuff. Is it possible that the price is only like 3% of the actual value? For example, in Whiterun Adrienne Avenicci is buying a gold ingot for only 3 gold coins. The value in my inventory is 100. My speech skill is 24 and I do not have any perks in that skill. I have a lot of mods though, but nothing that would change the merchant prices. I have the Rich Merchants mod, but it only raises the amount of gold available by the merchants.

There's not much we can do to help you until we see your mod list.