Editing Comparables (section)

===Sales comparison approach===
This is the approach most commonly associated with the use of comparables.  The appraiser seeks enough comparables (as few as three in a residential analysis, many more in a non-residential appraisal) and makes adjustments to the comparables' selling prices according to the various factors of comparison.  For example, if a subject residence is {{convert|1000|sqft|m2}}, but a comparable is 1,100, then the selling price of the comparable will be adjusted ''downward'' to account for this difference in value.  The downward adjustment may be very small, since marginal prices of comparable factors are usually much lower than average prices over small ranges of values.