Help!!

Help visible confusion
So basically I have the ability to make a mining machine for eth using 14 HD 7950s from GPU shack. I did some basic googling for profitability and found this website. (https://www.miningbenchmark.net/calculator1.php?idcarte=241&hp=182000000&pc=1960&cpk=0.08) What I don't understand is how there is negative profit when it says monthly profit. HOW IS IT LESS MONEY. It should be around 500 USD monthly. Someone help clarify this, please.
My Build: ( There is supposed to be 2 of those power supplies)
submitted by /u/SnyperLyfe_04
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