E-Commerce Glossary

The Average Order Value indicates how much a customer spends on average per order in your online store.

Average Revenue per User shows how much revenue you generate per customer on average within a specific time period – a key metric for customer value and growth.

Bounce Rate shows what percentage of visitors leave your website after viewing only one page, without further interaction.

The Break-Even Point shows when revenue equals total costs – beyond this point, your online store becomes profitable.

Cart Abandonment Rate shows what percentage of visitors add products to their cart but don't complete the purchase.

Churn Rate shows the percentage of customers who leave and stop buying within a specific time period.

CTR shows the percentage of users who actually click on your ad after seeing it – a direct indicator of ad attractiveness.

The CLV:CAC Ratio shows how much revenue you generate per dollar invested in customer acquisition. It is the ultimate indicator for sustainable growth.

Contribution Margin is the amount remaining after deducting all variable costs from revenue, contributing to fixed cost coverage and profit generation.

Contribution Margin I shows how much remains from the selling price after deducting the cost of goods sold (COGS). It's the first level of contribution margin analysis and forms the basis for all further calculations.

Contribution Margin II includes not only COGS but also all variable distribution costs such as shipping, packaging, and payment fees. It shows the true profitability per order.

Contribution Margin III shows profitability after considering product-specific fixed costs such as allocated storage and marketing expenses. It's decisive for assortment decisions.

Conversion Rate shows what percentage of your shop visitors actually complete a purchase.

CPC shows how much you pay on average per click on your ad – a crucial factor for the efficiency of your paid campaigns.

CPM shows the cost per 1,000 impressions of your ad – the central metric for reach and awareness campaigns.

Customer Acquisition Cost shows how much you invest on average to acquire a new customer.

Customer Lifetime Value shows how much revenue a customer generates over their entire relationship with your business.

Gross Margin shows the percentage of revenue remaining after deducting direct cost of goods sold - a key indicator of profitability.

Inventory Turnover shows how many times average inventory is sold and replaced within a year.

MER (also called Blended ROAS) shows the ratio of total revenue to total marketing spend – independent of individual channels or attribution.

Product Margin shows the percentage profit share of a product after deducting the purchase price and all variable costs from the selling price.

Net Margin shows the percentage of revenue that remains as profit after deducting all costs – the ultimate measure of profitability.

Net Promoter Score measures your customers' willingness to recommend on a scale from -100 to +100.

Net Revenue is the actual revenue after deducting returns, discounts, allowances and sales tax - the foundation for all profitability calculations.

The Out-of-Stock Rate indicates what percentage of SKUs (product variants) are currently unavailable.

Profit on Ad Spend shows the actual profit per advertising dollar spent – a significantly more meaningful metric than traditional ROAS.

Repeat Purchase Rate shows the percentage of customers who have made more than one order. It is a key indicator for customer retention.

ROAS shows how much revenue each invested advertising dollar generates – the central metric for performance marketing.

The Return Rate indicates what percentage of all orders are sent back by customers.

Revenue per Visitor (RPV) shows how much revenue each visitor to your online store generates on average – a key metric for overall performance.

Sell-Through-Rate indicates what percentage of purchased inventory was sold within a specific time period.