What Is Cost Per Call at a Dealership BDC?
Cost per call divides total call handling cost by total calls handled over a period. Here's how it's calculated, why a lower number isn't automatically better, and how the cost basis differs by staffing model.
Cost per call is a dealership's total phone handling cost for a period, divided by the total number of calls handled in that same period. It covers labor, technology, and overhead, not just the phone bill, and it is usually calculated monthly or quarterly.
Dealermate is an AI call facilitation platform for Canadian automotive dealerships. Cost per call is a standard call center metric that dealerships have started pulling into BDC reporting, usually because a GM wants a single number to compare staffing models against. On its own, it answers a narrower question than most people assume.
How Cost Per Call Is Calculated
The basic formula is total call handling cost divided by total calls handled. The part that varies store to store is what goes into "total cost."
A full accounting usually includes agent wages and benefits, BDC manager or team lead time, the phone system or BDC software platform fee, and a share of recruiting and training cost tied to turnover. Dealership BDCs commonly run 50% to 80% annual turnover, which means a meaningful share of true cost per call is spent re-training agents who leave within their first year, not just staffing the calls that get answered.
Many dealerships calculate a thinner version of this number, using only agent wages divided by call volume, and leave out platform fees, management overhead, and training cost. That version is easier to pull from a payroll report, but it understates the real cost basis and makes cost-per-call comparisons between stores, or between staffing models, unreliable unless the same inputs are used on both sides.
Why a Lower Number Isn't Automatically Better
Cost per call falls when call volume rises without adding headcount, and it falls when average handle time drops. Neither of those changes is good on its own.
A team that rushes calls to keep handle time down can post an attractive cost-per-call number while first call resolution drops, because unresolved calls turn into repeat calls and callbacks that add cost back in later, just in a different column. A team that is short-staffed during peak windows can also show a low cost per call, simply because a share of inbound calls never got answered at all and never entered the denominator.
Cost per call measures what it cost to handle the calls that got handled. It says nothing about the calls that didn't.
Read alone, cost per call rewards speed and thin staffing. Read next to first call resolution and answer rate, it tells a dealership whether a lower number reflects real efficiency or a coverage gap that hasn't shown up in reporting yet.
How the Cost Basis Changes by Staffing Model
The inputs behind cost per call look different depending on how a dealership staffs its phones, which is why comparisons across models need to account for what each one actually includes.
| Staffing model | Cost basis | What's typically included |
|---|---|---|
| In-house BDC | Fixed labor cost regardless of call volume | Wages, benefits, management time, platform fee, recruiting and training |
| Outsourced or offshore BDC | Per-call or per-minute contract fee | Vendor's fee only; training and turnover cost sit with the vendor, not visible to the dealership |
| AI call facilitation | Per-call or per-outcome fee, scales with volume | Platform fee tied to calls handled or appointments booked; no wage, benefits, or turnover cost |
An in-house team's cost per call moves with staffing decisions and turnover, and stays roughly fixed even when call volume dips, since agents are still on the clock. An outsourced BDC's cost per call is contractually fixed but often opaque about what the vendor is actually delivering on each call. A per-outcome model ties cost directly to volume, which changes the comparison from a labor question to a unit-economics question.
What Cost Per Call Doesn't Capture
Cost per call is a cost metric, not a quality or coverage metric. It says nothing about calls that were transferred and rang out, calls that were answered but not resolved, or calls that never connected during a peak window.
It also doesn't capture the downstream cost of a call handled poorly. A service booking taken incorrectly, or a parts inquiry deferred to a callback that never happens, shows up later as a lost repair order or a no-show, not as a line item against the call that caused it. Comparing staffing models on cost per call alone, without also checking answer rate and resolution rate for each, tends to favor whichever option is best at looking efficient rather than whichever one is best at closing the loop with the customer.
Frequently Asked Questions
What is cost per call at a dealership? Cost per call is a dealership's total call handling cost, including labor, platform fees, and training, divided by the total number of calls handled over a given period.
How do dealerships calculate cost per call? Total call handling cost divided by total calls handled for the period. A full calculation includes agent wages, management time, platform fees, and a share of recruiting and training cost; a partial calculation using only wages will understate the true number.
Is a lower cost per call always better? No. Cost per call falls when calls are handled faster or when a team is understaffed and simply answers fewer calls, neither of which is inherently good. It needs to be read alongside first call resolution and answer rate to tell whether a lower number reflects real efficiency or an emerging coverage gap.