Base value vs. the comparables

The base value is the starting value derived from the comparable vehicles, before your vehicle's own condition adjustment. If it is lower than every comparable's adjusted value, or doesn't reconcile with them, you can ask how it was calculated. The free check compares them for you.

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How it is derived

In CCC reports the base value is derived from the comparables with a method that is not simply the average of the adjusted values shown. In the Mitchell reports we have examined, the market value matched the simple average of the comparables' adjusted values.

What to check

What you can ask

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Upload the valuation report your insurer sent you. In about a minute you see which items may not add up — free. The full review report with a draft letter you edit and send yourself is $79.

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Frequently asked questions

Why isn't the base value the average of the comparables?

Some valuation methods weight or adjust comparables in ways not shown as a simple average. You can ask the insurer to explain the calculation.

What does the free check do?

It reads the base value and every comparable's adjusted value and flags a base value below all of them, or comparables whose adjustments don't add up.

What this is — and isn’t