Transform raw spreadsheet data into actionable insights on delivery speed, refund rates, and QC consistency.
Your EastMallBuy order history spreadsheet contains a wealth of data, but raw numbers can be overwhelming. By visualizing this data, you can spot trends, identify issues, and make smarter purchasing decisions. This guide will show you how to create three key charts from your data.
Prerequisites: Preparing Your Data
Ensure your spreadsheet has at least the following columns with clear headers:
- Order Date
- Delivery Date
- Order Status
- Product SKU/Category
Clean your data: remove blank rows, ensure date formats are consistent, and standardize status labels (e.g., "Refunded", "Refund Complete" to just "Refunded").
Chart 1: Delivery Speed Trend Over Time
This line chart shows how shipping times have changed, helping you anticipate future delays.
Steps to Create:
- Calculate Lead Time:"Lead Time (Days)". Use a formula to subtract the Order Date from the Delivery Date for each delivered order.
- Create Pivot Table:average
- Insert Chart:Line Chart.
- Customize:"Average Delivery Lead Time (by Month)". Label the X-axis "Order Month" and Y-axis "Average Days".
Chart 2: Refund Rate by Product Category
This bar chart identifies which product types have the highest refund rates, signaling potential quality or description mismatch issues.
Steps to Create:
- Categorize Data:
- Create Calculation:"Total Orders""Refunded Orders"
- Calculate Rate:"Refund Rate %"
- Insert Chart:Bar or Column Chart.
- Customize:"Refund Rate by Product Category". This instantly highlights problem areas.
Chart 3: QC Consistency Timeline
A combination chart tracking QC Pass/Fail rates over time, revealing if supplier quality is improving or deteriorating.
Steps to Create:
- Flag QC Status:"QC Pass""QC Fail"
- Build Timeline Data:
- Total QC Checks (COUNT of all Pass/Fail)
- Number of QC Fails (COUNTIF status="QC Fail")
- Fail Rate % = (Fails / Total Checks)*100
- Insert Combo Chart:Line Chart. Then add "Number of QC Fails" as a Column Chart
- Customize:"Monthly QC Fail Rate & Volume". The line shows the trend, while columns show inspection volume.
Turning Insights into Action
Regularly updating these charts transforms your static EastMallBuy spreadsheet into a dynamic dashboard:
- Negotiate Better:
- Adjust Budgeting:
- Optimize Timing:
By visualizing your data, you move from reactive problem-solving to proactive supply chain management.
