> ## 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.

# P70 AOV Purchase Cost: Ad Spend per High-Value Order

> Calculate advertising cost per high-value purchase (P70 AOV). Optimize your ad spend for premium customer acquisition.

<Tip>
  P70 AOV Purchase Cost measures how much you spend on advertising for each order above the 70th percentile AOV.
</Tip>

## Formula

<Info>
  **P70 AOV Purchase Cost** = **Ad Spend** ÷ **P70 AOV Purchases**
</Info>

### Formula Components

| Metric                                                                           | Definition                                         |
| -------------------------------------------------------------------------------- | -------------------------------------------------- |
| [**Ad Spend**](/reference/metrics/advertising/blended/blended-spend)             | Total advertising cost from connected ad platforms |
| [**P70 AOV Purchases**](/reference/metrics/funnel/conversions/p70-aov-purchases) | Count of orders above the 70th percentile AOV      |

| Metadata        |                         |
| --------------- | ----------------------- |
| **Type**        | Currency                |
| **Data Source** | [Upstack Pixel](/pixel) |
| **Aggregation** | Ratio                   |

***

## Example

You spent **\$8,500** on Meta ads in January and drove **340 P70 AOV purchases**.

| Metric                | Value   | Notes                     |
| --------------------- | ------- | ------------------------- |
| Ad Spend              | \$8,500 | Monthly advertising cost  |
| P70 AOV Purchases     | 340     | High-value orders         |
| P70 AOV Purchase Cost | \$25.00 | Cost per high-value order |

***

## How It Works

This metric divides your total ad spend by the number of P70 AOV purchases to calculate the acquisition cost for premium customers. Lower values indicate more efficient premium customer acquisition.

***

## When to Use

| Scenario              | Action                                                              |
| --------------------- | ------------------------------------------------------------------- |
| Channel comparison    | Identify which platforms acquire premium customers most efficiently |
| Budget allocation     | Shift spend toward channels with lower P70 purchase costs           |
| Campaign benchmarking | Compare premium acquisition costs across campaigns                  |
| ROAS optimization     | Balance P70 purchase cost against high-value customer LTV           |

***

## Related Metrics

| Metric                                                                                 | Relationship                        |
| -------------------------------------------------------------------------------------- | ----------------------------------- |
| [P70 AOV Purchases](/reference/metrics/funnel/conversions/p70-aov-purchases)           | The denominator in this calculation |
| [P70 AOV Purchase Value](/reference/metrics/funnel/conversions/p70-aov-purchase-value) | Revenue from P70 purchases          |
| [Purchase Cost](/reference/metrics/funnel/conversions/cost-per-purchase)               | Cost per any purchase               |

[See all Conversions metrics →](/reference/metrics/funnel/conversions)