My estimate was pretty close. 10.5 lbs of peaches in, 1.47 lbs out.

I paid $3.02/lb, so that's $31.71 total. This probably used under 50ยข worth of electricity. That means it's $21.90/lb ($1.37/oz), not counting my time of course.
When I compare this to commercial dried peaches, I can see that I'm losing money on this deal. ๐ซค And my peaches taste fine, but I don't think they're any better than the high quality store bought stuff.
I found some on Amazon for $16.69/lb that are no sugar added, unsweetened, all natural. Another one is $18.99/lb and it shows the ingredients as being peaches and nothing else.
The moral of the story is that unless I can get peaches for $2/lb or less, or the price of commercially produced dried peaches goes up, I should spend my money elsewhere. Thanks for coming to my TED talk. ๐ค