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Sales ComparisonMEDIUM16.4% of exam

Two separate comparables each have only one supported signed adjustment:the first+$18,000, the second −$22,500. Which net/gross statement is correct?

Correct Answer

C) First net+$18,000/gross $18,000; second net −$22,500/gross $22,500

For a comparable with one signed adjustment, net equals that signed amount and gross equals its absolute magnitude. Thus the first case has net +$18,000 and gross $18,000; the second has net −$22,500 and gross $22,500. Gross does not preserve a negative sign. USPAP does not prohibit gross summaries; neither summary by itself establishes adjustment support.

Answer Options
A
Both gross amounts must retain the same positive or negative signs as net
B
Net equals gross only when no property difference exists
C
First net+$18,000/gross $18,000; second net −$22,500/gross $22,500
D
Using a gross summary is categorically prohibited by USPAP

Why This Is the Correct Answer

Option C is correct because the first comparable's single +$18,000 adjustment gives net +$18,000 and gross $18,000. The second comparable's single −$22,500 adjustment gives net −$22,500 and gross $22,500, since gross uses the absolute magnitude.

Why the Other Options Are Wrong

Option A: Both gross amounts must retain the same positive or negative signs as net

Option A says both gross amounts must keep the same positive or negative signs as net. Gross is a sum of absolute values, so the second comparable's gross is $22,500, not −$22,500.

Option B: Net equals gross only when no property difference exists

Option B says net equals gross only when no property difference exists. Here each comparable has a real, supported difference, yet net and gross are equal in magnitude because there is only one adjustment; when that adjustment is upward they are identical.

Option D: Using a gross summary is categorically prohibited by USPAP

Option D claims USPAP categorically prohibits using a gross summary. USPAP contains no such prohibition, and gross adjustment summaries are a common tool for judging comparability.

One adjustment, same size

With a single adjustment, net is the signed amount and gross is the same number with the sign removed.

How to use: Use this when a comparable has just one adjustment and you need its net and gross.

Exam Tip

Remember that gross cannot be negative because it adds absolute values; any answer showing a negative gross figure is incorrect.

Common Mistakes to Avoid

  • -Giving the gross figure a negative sign
  • -Believing net and gross can match only when there are no differences
  • -Thinking USPAP bans gross adjustment summaries

Concept Deep Dive

Analysis

This question tests how net and gross behave when a comparable has only one adjustment. With a single adjustment, net equals that signed amount and gross equals its absolute value, so the two match in size but gross carries no negative sign.

Background Knowledge

Gross adjustment is the sum of the absolute values of all adjustments to a sale, while net adjustment is their signed total. When there is only one adjustment, the two are the same size and differ only in that gross has no sign. Neither summary on its own establishes that the adjustment is supported.

Real-World Application

An appraiser has two comparables, one needing only a +$18,000 GLA adjustment and the other only a −$22,500 location adjustment. The grid shows net +$18,000 and gross $18,000 for the first, and net −$22,500 and gross $22,500 for the second.

net adjustmentgross adjustmentabsolute valuesingle adjustmentUSPAP
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