Average Selling Price (ASP) is the average price a given product is sold for. This metric can be applied narrowly to a product or service or, more broadly, to an entire market. It's a common metric, often used to compare businesses or channels and is particularly interesting as a reflection of what consumers will pay for similar products or services.

Average Basket Size (ABS) is an e-commerce metric that tracks the average number of items sold per transaction. In other words, ABS measures the increase or decrease in the quantity of items purchased per transaction. It can also be used to calculate the Average Basket Value, which is the average cost of units placed in the basket.

Return on Ad Spend (ROAS) is a marketing metric that quantifies the total revenue generated for every dollar spent on advertising. In other words, ROAS measures the effectiveness of your advertising efforts by comparing total ad spend on campaigns to the revenue from those campaigns.