# Lead quality calculator

> Work out what your SDRs burn calling businesses outside the target, when the file comes from a business registry or a classification code.

Source : https://scalon.fr/en/tools/sdr-cost

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A file bought from a business registry or built on classification codes sells you a legal status, not a buyer. It says a business is registered, never whether it has any use for your product or whether it is still trading. So your SDRs find out on the phone what the file should have settled first.

## What your SDRs burn on unqualified lists.

The waste is not in the price of the file, it is in your SDRs' time.

Roughly 100 calls a day over 20 working days.

On a file built from classification codes, that is the order of magnitude we measure.

SDR budget burned per year

$225,000

Calls to businesses outside the target**7,500 / month**

Calls that actually count**2,500 / month**

SDR budget burned per month**$18,750**

Real cost of one useful call**$10**

SDRs paid to call into the void**3.8 of 5**

[Get 100 rows for free](/en#call) Free, no commitment.

The math is deliberately simple: it attributes to manual sorting the share of SDR time spent on businesses outside the target. It counts neither the cost of the file nor the revenue missed on the deals never worked.

The other calculators

[Market size calculator](/en/tools/local-tam) [Qualification time calculator](/en/tools/qualification-time) [Additional revenue calculator](/en/tools/missed-revenue)