I'm trying to make a calculator to help out with my trades but my math is off for some reason.
I shorted 0.03 BTC @ 4029.3 USD Using the current price of 4142 I calculate a loss of 3.38 USD, but on bitfinex's site it says if I were to close the position now I would post a loss of 3.616 USD which is a not-insignificant difference. They charge 0.1% in transaction fees which works out to 0.12 USD and is still off by a bit.
I'm wondering if I'm retarded and calculating this wrong somehow, or if there's some sneaky jew fees I'm missing
Pic related.
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