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CNFANS Spreadsheet: How to Identify Costly Logistics Patterns

2025-11-12

Logistics cost overruns are among the most persistent and hidden profit drains for e-commerce sellers. The CNFANS Spreadsheet is a powerful tool designed to bring clarity to your shipping data, allowing you to systematically uncover and address these costly patterns. By leveraging formulas and data analysis, you can transform raw data into actionable cost-saving strategies.

The Hidden Problem: Frequent Logistics Overcharges

Many sellers accept minor shipping discrepancies as a "cost of doing business." However, these small overcharges—incorrect dimensional weight calculations, misapplied surcharges, or Mis-declared service levels—compound over thousands of packages, leading to significant financial losses. Manually tracking these issues is impractical, which is where the analytical power of the CNFANS Spreadsheet comes in.

Anatomy of the CNFANS Analysis Spreadsheet

An effective analysis sheet should import or log the following core data points for every shipment:

Key Formulas to Identify Costly Patterns

1. Flagging Cost Variances

The most straightforward check is for discrepancies between quoted and actual charges.

=IF([Actual Cost]     [Quoted Cost], "OVERCHARGE", "OK")

This simple logical test immediately highlights any shipment where you were charged more than expected. Filtering for "OVERCHARGE" allows you to focus your investigation.

2. Analyzing Dimensional Weight Discrepancies

Carriers charge based on dimensional weight (DIM) when it exceeds the actual weight. Miscalculations here are a primary source of overbilling.

Calculate Billable DIM Weight:
=([Length] * [Width] * [Height]) / [DIM Divisor]

Identify Discrepancy:
=IF([Carrier's Billable Weight]     [Your Calculated Billable Weight], "CHECK DIM", "OK")

This formula identifies packages where the carrier's applied weight seems incorrect based on your provided dimensions.

3. Identifying Inefficient Service Level Usage

Are you consistently using expensive Express shipping for zones or product types that could reliably arrive via a cheaper Standard service?

Pivot Table Analysis:average shipping costaverage transit timedestination zoneservice level. You may discover that "Express" to a neighboring zone only saves 0.5 days but doubles the cost.

4. auditing Surcharge Patterns

Surcharges can be legitimate, but patterns can reveal procedural errors.

Flag High Surcharge Rates:
=IF([Surcharge Amount] / [Actual Cost]     0.15, "HIGH FEE REVIEW", "")

This flags any shipment where surcharges make up more than 15% of the total cost, pointing to potential issues like frequent address corrections or unnecessary residential fees.

Turning Analysis into Action: Cost-Saving Opportunities

Conclusion

The CNFANS Spreadsheet is more than a record-keeping tool; it's a strategic asset. By moving from passive data collection to active analysis with targeted formulas, you can shift the logistics function from a cost center to a source of measurable profit improvement. Start by implementing the basic cost variance flag, and progressively build out your analysis to uncover the deep, systemic patterns eroding your margins. The path to savings is in your data.

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