> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upstackdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# New Customer COGS Gross Rate: First-Time Buyer Cost Ratio

> Measure new customer COGS as a percentage of their gross revenue. Track first-time buyer cost efficiency and compare margin ratios across segments.

<Tip>
  New customer COGS as a share of their gross revenue—shows what percentage of first-time buyer revenue goes to product costs.
</Tip>

## Formula

<Info>
  **New Customer COGS Gross Rate** = ( [**New Customer COGS**](/reference/metrics/orders/cogs/new-customer-cogs) ÷ [**New Customer Gross Revenue**](/reference/metrics/orders/revenue/new-customer-gross-revenue) ) × 100
</Info>

### Formula Components

| Metric                                                                                         | Definition                                        |
| ---------------------------------------------------------------------------------------------- | ------------------------------------------------- |
| [**New Customer COGS**](/reference/metrics/orders/cogs/new-customer-cogs)                      | Cost of goods sold for first-time buyer orders    |
| [**New Customer Gross Revenue**](/reference/metrics/orders/revenue/new-customer-gross-revenue) | Gross revenue from new customers before discounts |

| Metadata        |                                                                         |
| --------------- | ----------------------------------------------------------------------- |
| **Type**        | Percentage                                                              |
| **Data Source** | [Shopify](/sources/shopify), [Upstack Costs](/dashboard/settings/costs) |
| **Aggregation** | Ratio                                                                   |

***

## Example

Your new customers generated **\$47,200** in gross revenue with **\$18,340** in product costs:

| Segment             | COGS     | Gross Revenue | COGS/Gross Rate |
| ------------------- | -------- | ------------- | --------------- |
| New Customers       | \$18,340 | \$47,200      | 38.9%           |
| Returning Customers | \$24,680 | \$68,400      | 36.1%           |

New customers have a higher COGS rate—they often purchase starter bundles or lower-margin acquisition products.

***

## How It Works

This metric divides New Customer COGS by New Customer Gross Revenue. Higher percentages indicate new customers are buying higher-cost products relative to revenue. Compare to returning customer rate to understand how cost efficiency differs by segment.

***

## When to Use

| Scenario              | Action                                                             |
| --------------------- | ------------------------------------------------------------------ |
| Segment cost analysis | Compare to returning customer COGS rate for efficiency differences |
| Acquisition strategy  | Evaluate if starter products are eating into margins               |
| Product mix review    | Identify if new customers gravitate toward high-cost items         |
| Pricing validation    | Ensure acquisition pricing maintains healthy cost ratios           |

***

## Related Metrics

| Metric                                                                                                  | Relationship                                  |
| ------------------------------------------------------------------------------------------------------- | --------------------------------------------- |
| [New Customer COGS](/reference/metrics/orders/cogs/new-customer-cogs)                                   | Numerator—product costs for first-time orders |
| [New Customer Gross Revenue](/reference/metrics/orders/revenue/new-customer-gross-revenue)              | Denominator—pre-discount revenue              |
| [COGS Gross Rate](/reference/metrics/orders/cogs/cogs-gross-rate)                                       | All-customer comparison                       |
| [Returning Customer COGS Gross Rate](/reference/metrics/orders/cogs/returning-customer-cogs-gross-rate) | Repeat buyer comparison                       |

[See all COGS metrics →](/reference/metrics/orders/cogs)