Effectively tracking Quality Control (QC) fails and refund rates is crucial for managing a service business on platforms like USFANS. This guide will show you how to transform raw log data into clear, actionable graphs using a spreadsheet, enabling you to evaluate and improve your service performance at a glance.
Step 1: Data Preparation & Log Consolidation
Begin by organizing your raw data into a structured table within your spreadsheet (e.g., Google Sheets, Excel).
- Create Dedicated Sheets:QC logsrefund logs.
- Standardize Columns:Date,
Order ID, QC Fail Reason. For Refunds: Date, Order ID, Refund Amount, Refund Reason.
- Monthly Summary Table:
| Month | Total Orders | QC Fail Count | QC Ratio (%) | Refund Count | Refund Ratio (%) |
| 2024-01 | 1200 | 24 | 2.0 | 18 | 1.5 |
| 2024-02 | 1350 | 34 | 2.5 | 20 | 1.48 |
- Use formulas like
COUNTIFS
Step 2: Creating Performance Charts
Use your summary table as the data source for charts.
Dual-Axis Trend Line Chart (Recommended)
This single chart effectively shows the trend and correlation between QC and Refund ratios over time.
- Highlight your summary table's
Month, QC Ratio (%), and Refund Ratio (%)
- Insert a Line ChartCombo Chart.
- Set both ratios as line series. If using a Combo Chart, assign them both to a secondary axis for clearer comparison.
- Format the chart: Add a title like "Monthly QC vs. Refund Ratio Trend", label axes clearly, and use distinct colors (e.g., red for QC, amber for Refund).
[Chart: Line graph showing two lines trending over months. QC Ratio line in red, Refund Ratio line in amber.]
Comparative Bar Chart
A side-by-side bar chart is excellent for monthly comparison.
- Select the
Month, QC Ratio (%), and Refund Ratio (%)
- Insert a Clustered Column Chart.
- Format the bars for visual clarity and add data labels for precise values.
[Chart: Clustered columns for each month, with QC and Refund ratios shown as two separate bars.]
Reason Breakdown Pie/Bar Charts
Deep-dive into the "why" behind the numbers.
- Create a pivot table from your logs to count occurrences per
QC Fail ReasonRefund Reason.
- Generate a Pie ChartBar Chart
[Chart: Pie chart showing proportions: "Audio Issues: 40%", "Video Quality: 35%", "Content Mismatch: 25%".]
Step 3: Interpreting the Visuals for Actionable Insights
Graphs tell a story about your service health.
- Identifying Correlations:
- Tracking Progress:
- Pinpointing Problems:
- Setting Benchmarks:
Maintaining Your Dashboard
Automate your spreadsheet as much as possible. Use ARRAYFORMULA