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Sales ComparisonMEDIUM16.4% of exam

A comparable’s cash price is $400,000. Market data indicate a total time increase of 5%, and a −$15,000 garage adjustment is stated in effective-date dollars. What is the adjusted price?

Correct Answer

B) $405,000

400000×1.05−15000=405000. Common errors: adding the garage adjustment instead of subtracting it gives $435,000; leaving out the garage adjustment gives $420,000; time-adjusting the garage adjustment that is already in effective-date dollars gives $404,250.

Answer Options
A
$404,250
B
$405,000
C
$420,000
D
$435,000

Why This Is the Correct Answer

Option B is correct because $400,000 × 1.05 = $420,000 after the time adjustment, and applying the −$15,000 garage adjustment gives $420,000 − $15,000 = $405,000. The garage amount is already in effective-date dollars, so it is applied after the time adjustment and is not inflated. The order follows the stated bases rather than a universal rule.

Why the Other Options Are Wrong

Option A: $404,250

Option A, $404,250, is wrong because it subtracts the garage adjustment first and then time-adjusts: (400,000 − 15,000) × 1.05 = 404,250. That improperly applies the time increase to a garage amount already stated in effective-date dollars; the correct result is 400,000 × 1.05 − 15,000 = $405,000.

Option C: $420,000

Option C, $420,000, is wrong because it applies only the time adjustment (400,000 × 1.05 = 420,000) and leaves out the −$15,000 garage adjustment. Subtracting the garage adjustment gives $405,000.

Option D: $435,000

Option D, $435,000, is wrong because it adds the garage adjustment instead of subtracting it: 400,000 × 1.05 + 15,000 = 435,000. The adjustment is negative, so the correct result is 420,000 − 15,000 = $405,000.

Match each adjustment to its base

Apply each adjustment to the price it was measured against; effective-date dollars are not time-adjusted again.

How to use: Use this when a grid mixes percentage and dollar adjustments.

Exam Tip

Look for wording such as effective-date dollars, which tells you whether a dollar adjustment should be inside or outside the time adjustment.

Common Mistakes to Avoid

  • -Time-adjusting a dollar amount that is already in current dollars
  • -Adding a negative adjustment instead of subtracting it
  • -Applying only the percentage adjustment and forgetting the dollar adjustment

Concept Deep Dive

Analysis

This question tests applying a percentage adjustment and a dollar adjustment in the correct order based on their stated bases. The garage adjustment is already expressed in effective-date dollars, so it should not be time-adjusted. Apply the 5% time increase to the cash price, then subtract the garage amount.

Background Knowledge

Time adjustments must be supported by evidence and are applied to prices from an earlier date. A dollar adjustment already measured as of the effective date does not need a further time adjustment. When percentage and dollar adjustments are combined, the order depends on the base each adjustment is stated in.

Real-World Application

An appraiser derives a garage adjustment from current paired sales and a time adjustment from resale data. Because the garage figure reflects current prices, the appraiser time-adjusts the comparable's price first and then applies the garage amount. The report states the base for each adjustment.

time adjustmentdollar adjustmentadjustment ordereffective datecombined adjustments
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