In that case, I'd round up to $83.00.

It doesn't have to be exact, but don't be afraid of non-even numbers in your quotes. I had jobs that came to $126 or $174 and that's okay. That's just the cost of doing business.
ETA: I'd rather lose a client that I am losing money on to open a slot for one who will be profitable. If you think of it that way, you won't be as afraid to raise prices.
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Torrey Shannon
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Cleaning for Heroes
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