understanding a wholesale calculator

[Tiffany Campbell]

has anyone recently used the wholesale calculator. im testing a deal im looking into and from what i put in t seems to be confusing cause this is what i get... 

According to the data you provided, you can afford to offer -$122,356.67 to get this property under contract and your end buyer will pay -$112,356.67 for the property, netting you a wholesale fee of$10,000.00. This is based on an eventual ARV of $24,000.00, a profit for your flipping cash buyer of$20,000.00, and a rehab budget of $75,000.00.

my question is why the negative for afford to offer mind yall im new