Subject: Re: Second quarter comments
The old position ($350 call written for a premium of $29.79) had a breakeven of $379.79 in the sense that, had the stock price been high on expiration date, that's how much money I would have received for my shares that got called away.

Ok, I think you mixed up two numbers then. Originally you typed:

In July When BRK.B was trading at just under $350 I wrote January $350 calls for a premium of $19.35 net of commissions.

$29.79 is what you paid to close the original calls.