I don't remember how much bitcoin was worth back then, so does someone know how much he paid for those 648btc back when he bought them?

I can see they are 270k$ now but I want to know how much profit he made

... When the house closed on Friday I got approximately 648 BTC for my house which is based on prices over the past 6 months when the deal was actively negotiated, legal fees, realtor fees, and a bunch of contract wording that I frankly don't understand. ...