Adjusted Sales price is the  Price of the house minus the negotiated fee, and or sale of the property , ( Whole sale v. s Short Sale / Foreclosure v. s Assignment) – Price of property = Adjusted Sales Price.

The comparable property is identical to the subject property except that the comparable has an additional half bath. The sales price of $170,000 is adjusted by subtracting $6,000 for the extra bath. The adjusted sales price is $164,000