Tracking Inbound Call Abandonment Rate by Month

Learn how to track your Inbound Call Abandonment Rate % month by month so you can see how much inbound demand you are missing. In this lesson, you’ll build a clean monthly view of total calls vs. abandoned calls, compare performance to a target, and spot the months where revenue leakage is highest.

Download the Excel file used in this tutorial:

Inbound Call Abandonment Rate %

1. Identify the required columns in your dataset

  • Confirm you have:
    • Call Date/Time
    • Outcome or Call Abandoned (Yes/No, or “Abandoned” as an outcome)
  • Everything else is optional for this build.

2. Extract Month and Year from the call date

  • Create a Month column from Call Date/Time:
    • Use the TEXT() function with a month format:

=TEXT([Call Date/Time],”mmmm”)

  • Create a Year column from Call Date/Time:
    • Use the TEXT() function with a year format:

=TEXT([Call Date/Time],”yyyy”)

  • You can delete these helper examples afterward if you already have month/year fields elsewhere.

3. Put your dataset into an Excel Table

  • Convert the range to a table so structured references work cleanly.
  • Note the table name (example shown in the video: Table_Calls).
  • Confirm the table includes columns like:
    • Month
    • Year
    • Outcome (or the abandonment flag)

4. Create a unique list of Month and Year

  • Build a list of unique Month-Year combinations using UNIQUE():
    • Select the Month and Year columns together (two-column range)
    • Apply =UNIQUE(range)
  • Use keyboard selection shortcuts to grab the full range quickly:
    • Ctrl + Shift + Right Arrow
    • Ctrl + Shift + Down Arrow
  • Copy the results and paste values:
    • Ctrl + C
    • Ctrl + Shift + V

5. Add calculation columns to your summary table

Create these headers next to your unique Month-Year list:

  • Total Calls
  • Abandoned Calls
  • Inbound Call Abandonment Rate %
  • Target %

6. Calculate Total Calls per Month-Year

  • Use COUNTIFS() because you need multiple criteria:
    • Criteria 1: Month
    • Criteria 2: Year
  • Example structure (using table structured references):

=COUNTIFS(Table_Calls[Month],B3,Table_Calls[Year],C3)

  • Drag the formula down to fill all months.

7. Calculate Abandoned Calls per Month-Year

  • Copy the Total Calls formula, then add one more criterion:
    • Criteria 3: Outcome equals Abandoned (or Yes)
  • Example structure:

=COUNTIFS(Table_Calls[Month],B3,Table_Calls[Year],C3,Table_Calls[Outcome],$E$2)

  • Put the word Abandoned (or your matching label) in a single cell (like E2) and lock it:
    • Press F4 on the reference so it stays fixed when you drag down
    • If you do not lock it, the reference will shift and break the logic
  • Drag the formula down.

8. Calculate the Abandonment Rate percentage

  • Divide abandoned calls by total calls:

=AbandonedCalls/TotalCalls

  • Format as percent:
    • Ctrl + Shift + 5
  • Drag down.

9. Create a dynamic Target % column

  • Enter a single target value at the top (example used: 10%).
  • In the target column for each row, reference that single target cell:

=TargetCellAbove

  • This makes the entire target line update if you change the benchmark.

10. Build the X-axis label for the chart

  • Create a “Month – Year” label so the chart axis reads cleanly.
  • Combine Month and Year into one cell using concatenation:
    • Month + space + dash + space + Year
  • Structure shown in the video:
    • Month & ” – “ & Year

11. Insert the combo chart

  • Select the chart inputs:
    • Date label column (Month-Year text)
    • Abandonment Rate %
    • Target %
  • Insert:
    • Insert → Recommended Charts
  • If it does not look right:
    • Go to All Charts → Combo
    • Set:
      • Abandonment Rate % as a line
      • Target % as a line
    • Put the percentage lines on the correct axis so they are not scaled against call volume.

12. Format the target benchmark line

  • Click the target line and open format options.
  • Make it visually lighter:
    • Reduce line thickness
    • Change the line style (dotted/dashed)
  • The goal is to see the benchmark without it dominating the chart.

13. Add data labels only where needed

  • Add data labels to the line you want to emphasize (in the video, labels were added selectively to avoid noise).
  • Use the chart “+” icon or Chart Elements:
    • Data Labels
  • If labels are hard to read:
    • Click the labels
    • Apply a light fill color behind them so they stand out.

14. Title the chart

  • Update the chart title to match the output:
    • Example used: Call Abandonment Rate Percentage by [time period]
  • Keep it consistent with the KPI name used on the page.

Inbound Call Abandonment Rate % (Sales KPI)

Q1. What is Inbound Call Abandonment Rate %?
Inbound Call Abandonment Rate % is the percentage of inbound calls that customers hang up on before speaking to someone. It’s a critical sales KPI because abandoned calls often represent missed booked jobs and lost revenue.

Q2. Why is this a sales KPI and not just a marketing KPI?
Because abandonment happens after the phone rings. Even if marketing generates plenty of calls, high abandonment means your team is not converting that demand into conversations, appointments, and revenue.

Q3. What will this monthly tracking help me see?
You’ll be able to spot patterns like seasonal spikes in call volume, identify months where abandoned calls increase, and quickly see whether performance is improving or drifting away from your target.

Q4. What’s the best way to visualize abandonment rate with call volume?
A combo-style view is ideal: you can see call volume and abandoned calls alongside the abandonment rate %, plus a clear target line so you can instantly tell when you’re above or below benchmark.

Q5. What should I do if abandonment spikes during high-volume months?
That usually signals a capacity or coverage issue. The KPI helps you pinpoint when the breakdown happens so you can adjust staffing, scheduling, routing, or call-handling processes to capture more inbound demand.

Q6. Do I need a complex call center system to track this?
No. As long as you have call records with a call timestamp and an outcome like “abandoned” vs. “answered,” you can build a reliable monthly view and start measuring performance right away.

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