Metrics That Actually Matter (And What to Ignore)

1. Contribution Margin Per Order (Not Gross Margin)

Gross margin net revenue minus COGS tells you about product economics. Contribution margin per order net revenue minus COGS minus fulfilment cost minus payment gateway fees minus return-adjusted post-purchase costs tells you whether the business is actually making money on each order it ships. Most D2C brands know their gross margin. Most D2C brands do not know their contribution margin per order by SKU and by channel. The difference is the operational cost layer that sits between the product margin and the business's actual per-order profitability. A brand with 45% gross margin and 18% fulfilment and payment processing costs has a 27% contribution margin meaning each order contributes 27 cents per rupee of revenue toward fixed costs and profit before any marketing spend. This is the number that determines whether growth is profitable or margin-dilutive, and it should be calculated weekly, by SKU, and by channel.

2. CAC-to-LTV Ratio by Cohort (Not Blended CAC)

Blended CAC total marketing spend divided by total new customers is a lagging average that conceals channel quality differences, cohort quality differences, and the trend direction of acquisition efficiency. The metric that matters is the CAC-to-LTV ratio by acquisition cohort the ratio of what was spent to acquire a customer in a specific period through a specific channel to the revenue that customer has generated in the subsequent 6 and 12 months. This ratio reveals which channels are building a quality customer base (high LTV relative to CAC) and which are acquiring one-time buyers at costs that are only justified by LTV assumptions the business is not delivering. Track this quarterly by channel and by first-product purchased.

3. Inventory Days-of-Cover by SKU (Not Total Inventory Value)

Total inventory value is an accounting metric. Days-of-cover by SKU is an operational metric the number of days of sales current inventory will cover at current sell-through velocity, updated continuously. This metric makes two things visible that total inventory value obscures: the specific SKUs approaching stockout (days-of-cover below the reorder threshold) and the specific SKUs accumulating overstock (days-of-cover above 60 days). Track this weekly for every SKU and set automated alerts when any SKU crosses the reorder threshold or the overstock threshold.

4. Net Promoter Score by Delivery Outcome

Standard NPS surveys reveal customer sentiment but do not explain its drivers. NPS segmented by delivery outcome comparing the NPS of customers who received their order on the promised date versus those who experienced a delay or NDR event reveals the specific customer experience impact of logistics performance. This metric quantifies in satisfaction terms what the logistics cost analysis quantifies in financial terms: the disproportionate brand damage that delivery failures produce relative to successful deliveries. Track this monthly with sufficient sample size to produce statistically meaningful segmentation by delivery outcome, courier partner, and geography.

5. Cash Conversion Cycle

The cash conversion cycle the number of days between paying for inventory (cash out) and collecting revenue from customers (cash in) is the single metric that most clearly predicts working capital stress before it becomes a crisis. A brand whose cash conversion cycle is lengthening (paying suppliers faster, receiving customer revenue more slowly) is building a working capital gap that will become a cash crisis if revenue growth accelerates without a corresponding improvement in the cash cycle. Track this monthly and model it prospectively what does the cash conversion cycle look like at 2x current revenue, and does the available working capital support it?