Is there a word or phrase that refers to the portion of the net sale proceeds that aren't capital gain? I know that portion is equal to the asset's cost basis (gain = proceeds - cost basis), but I don't think it actually is cost basis. If I understand the terms, the cost basis is the money I spent to acquire the asset, or maybe just an abstract, intangible amount equal to that. I want to refer to the actual money I received when selling it (the non-gain subset of it).
Imagine I buy an asset for $100 and sell it for $300. For simplicity, there are no commissions or fees. I want to be able to say "I received $300 of net proceeds. Of that $300, $200 was capital gains and $100 was __________."
While researching this question, I found some mentions of "return of capital", which sounds promising. However, those mentions were all talking about distributions from the security's issuer, so I'm not sure whether it can be used for proceeds from a sale to a third party.