How to Calculate Pay-Per-Call Profit, ROAS, and ROI (With Formulas)

The pay-per-call profit formula

Buyer-side pay-per-call has three money lines: what the calls paid, what the traffic cost, and what the call platform charged. The formula Easy Growth Ops publishes puts all three in one line:

Net profit = call payout − Meta spend − Google spend − TikTok spend − call-platform fees.

Leave a platform at zero if you don’t buy on it. Here is one hypothetical day for one account, so you can check the math:

Definitions

• Call payout. The money you are owed for calls in the window. In Ringba that is the Revenue or the Payout column, depending on your seat (see common mistakes).
• Billable call. A call that meets the buyer’s payout rules, such as a minimum duration. Ringba’s Summary report counts them in its Paid column (as of 8 October 2026; Ringba Summary Report).
• Revenue per call (RPC). Call payout ÷ calls. Ringba’s Summary report shows RPC as “the average revenue amount for calls in this group” (as of 8 October 2026; Ringba Summary Report). Always say which calls you divided by: all calls or billable calls.
• Cost per call. Ad spend ÷ calls. Watch the acronym: in Meta Ads Manager, CPC is cost per link click, “amount spent divided by link clicks” (as of 8 October 2026; Meta: CPC (cost per link click)), and in Google Ads, CPC is what you pay for each click on your ad (Google Ads: Cost-per-click (CPC)). If your sheet uses CPC for cost per call, label the column.
• CPA. Cost per acquisition. Google Ads defines it as “total cost divided by total conversions” (as of 8 October 2026; Google Ads Glossary). In pay-per-call, write down what counts as an acquisition.
• ROAS. Return on ad spend. Google Ads calculates it as “total conversion value divided by total spend”, shown as a percentage (as of 8 October 2026; Google Ads Glossary). Some teams show the return instead: (payout − spend) ÷ spend. That is the first number minus 100%.
• ROI. Return on investment. Google’s glossary uses “total profit divided by total spend” (as of 8 October 2026; Google Ads Glossary). For pay-per-call, count fees as spend too: net profit ÷ (ad spend + fees).
• Call-platform fees. What your call platform charges you. Ringba’s Call Details report, for example, has per-call Telco Cost and Total Cost columns (as of 8 October 2026; Ringba Call Details Report Column Dictionary).

ROAS vs ROI vs profit: which to watch

Net profit tells you where you stand. ROAS compares traffic quickly. Break-even cost per call sets your ceiling.

Break-even cost per call and break-even ROAS

1. Pick the window and the call count. Same dates, same time zone, and one definition of “call” (all calls or billable calls) for every line below.
2. Work out average payout per call. Call payout ÷ calls. In the example: $5,000 ÷ 200 = $25.00.
3. Work out fees per call. Call-platform fees ÷ calls. In the example: $300 ÷ 200 = $1.50.
4. Subtract. Break-even cost per call = $25.00 − $1.50 = $23.50. Pay more than that per call and the account loses money.
5. Compare with what you pay. Actual cost per call is $4,000 ÷ 200 = $20.00, so there is $3.50 of room per call, which is the $700 of net profit across 200 calls.

Break-even ROAS comes from the same numbers. You break even when payout = ad spend + fees, so break-even ROAS = 1 + fees ÷ ad spend. In the example that is 1 + $300 ÷ $4,000 = 1.075×, or a 7.5% return on spend. So there is no universal “good ROAS” for pay-per-call: it depends on your fees, and on costs outside this formula, such as salaries.

Common mistakes

Leaving out platform fees

In the example, return on ad spend is 25% but ROI is 16.3%. The gap is the $300 of fees.

Mismatched time zones

Each ad account has its own time zone. Meta’s default for new ad accounts is Pacific Standard Time, and changing it closes the account and creates a new one (as of 8 October 2026; Meta: change your ad account time zone). Google Ads reports by the account time zone and no longer supports changing it in standard accounts (Google Ads time zone setting). Ringba shows Call Date “in your local time zone” (Ringba Call Details Report Column Dictionary). If those differ, the same “day” covers different hours. Pick one zone and convert.

Counting non-billable calls

Dividing payout by billable calls and spend by all calls makes the break-even look better than it is. Use the same denominator on both sides.

Publisher vs network payout in Ringba

In Ringba, Revenue is “the gross amount of money earned from calls generated” and Payout is “the amount of money to be paid to your publisher” (as of 8 October 2026; Ringba column dictionary). If you own the Ringba account, your income is usually Revenue; if you publish into someone else’s, it is usually Payout. Our Ringba + Facebook Ads profit report guide covers this trap in more detail.

Stale or still-moving numbers

Ringba updates a call’s Revenue after the call is complete, and its Summary report has a Live column for calls still in progress (as of 8 October 2026; Ringba Summary Report). Payout can also change later: Ringba’s Call Details report flags calls whose payout or revenue an admin adjusted, and buyer adjustment requests that were approved (Ringba column dictionary). Google Ads reports its primary conversion columns by click time and notes reporting lags of up to 24–48 hours (as of 8 October 2026; Google Ads: understand your conversion tracking data). A mid-day ROAS can be too low (calls still live) or too high (calls later returned).

Spreadsheet version

One row per day (or per account per day). Inputs go in A–H; paste the formulas into row 2 and fill down. Wrap the divisions in IFERROR(…, "") if some rows have zero calls.

Format L and M as percentages.

Automating it

The sheet works until you need the number while traffic is running. Easy Growth Ops ROI does this math for you: it reads Meta, Google, and TikTok spend plus call payout from one call platform, and posts net profit, ROAS, CPC, and CPA per ad account to Slack. In ROI, CPC is cost per call, and ROAS uses the return convention, (revenue − spend) ÷ spend, so 0% is break-even on ad spend. Net profit is where call-platform fees come out.

Want this in Slack every 15–30 minutes, depending on setup? See ROI.

Already on a tracker? See RedTrack alternative for pay-per-call.

Running ACA traffic this open enrollment? See ACA pay-per-call for media buyers.