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ROI Calculator

Missed call cost calculator

See what unanswered calls cost your business, and what answering them is worth.

Starting assumptions — replace with your own numbers.

Your numbers

500
30%
$500
25%
60%
$0

Optional. Enter the monthly price from your custom quote to see net gain, return and payback. Comix Flow does not publish a fixed price.

Revenue at risk / month

$18,750

Recovered revenue / month
$11,250
Net gain / month
—
Return
—
Payback
—
Yearly net gain
—
Missed calls / month
150

Enter the monthly cost from your quote to see net gain, return and payback.

Estimate from your inputs, not a guarantee. Net gain subtracts only the AI cost you enter, not your other business costs.

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How the calculator works

Use call logs and sales records from the same period. Enter the calls that represent potential new business, your missed-call rate, close rate and average deal value. Then choose a recovery share and, if you have a quote, enter its monthly cost to compare scenarios. All preset values are editable starting assumptions, not industry benchmarks.

The math and its assumptions

  • Missed calls = monthly calls × missed-call rate.
  • Revenue at risk / month = missed calls × close rate × deal value.
  • Recovered revenue / month = revenue at risk × AI recovery share.
  • Net gain / month = recovered revenue − monthly AI cost.
  • Return = recovered revenue ÷ monthly AI cost.
  • Payback in days = monthly AI cost ÷ (recovered revenue ÷ 30).
  • Yearly net gain = monthly net gain × 12.
  • If no monthly cost is entered, net gain, return and payback are shown as —.

The close rate applies to recovered opportunities; an answered call is not automatically a customer. The yearly estimate assumes the same monthly inputs for twelve months. Figures are rounded only for display.

Worked example

Editable starting assumptions — not customer results or an industry average.

  1. 500 monthly calls × 30% missed = 150 missed calls.
  2. 150 missed calls × 25% close rate = 37.5 potential deals.
  3. 37.5 potential deals × $500 deal value = $18,750 revenue at risk / month.
  4. $18,750 × 60% recovery share = $11,250 recovered revenue / month.
  5. Net gain, return and payback depend on your monthly cost. Enter the price from your quote above to see them.

Frequently asked questions

Divide unanswered inbound calls by total inbound calls for the same period, then multiply by 100. Use your phone logs and a consistent definition of missed calls. Exclude duplicate or non-sales calls if they do not represent the opportunity you want to measure.

Use the share of comparable leads you actually reach that become paying customers. Match your call volume, close rate and deal value to the same period and type of inquiry.

No. Recovery share estimates how much of the missed-call opportunity the AI captures. The close rate separately estimates how many of those leads become customers. Neither input promises a booking or sale.

Every engagement is custom-quoted in your free 15-minute demo, because every build is custom and includes the agents, the build and the automations. Get a firm quote in the 15-minute demo, then enter that monthly price in the calculator to see your net gain, return and payback.

Yes. You can calculate, edit and share your results without paying or submitting your contact details.