# Calculating Sales on Variation Listings

Variation listings are products that come in multiple options — different sizes, colours, flavours, or pack quantities all sitting under one listing. They're common in categories like beauty, toys, and household products.

The tricky part is that the BSR and estimated sales figures you see in tools like SAS apply to the **entire listing** — not to the individual variation you're looking at. This means you can't just take the sales estimate at face value.

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**How to work out sales per variation**

The most reliable way is to use review share as a proxy for sales share.

Here's how it works:

1. Open the listing and check the total estimated sales — let's say 1,000 units a month across all variations
2. Look at the review count for each variation
3. Work out what percentage of total reviews each variation holds
4. Apply that percentage to the total sales estimate

**Example:**

* Black variant — 70% of reviews → approximately 700 sales per month
* Blue variant — 20% of reviews → approximately 200 sales per month
* Red variant — 10% of reviews → approximately 100 sales per month

SAS shows variation review share percentages directly so you don't need to do this manually — it's worth knowing the logic behind it though.

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**What to watch out for**

**New variations** — if a variation was added recently it won't have many reviews yet, so the review share method won't give you an accurate picture. Be cautious and look at Keepa for any Buy Box activity on that specific variation.

**Dominant variations** — often one or two variations account for the vast majority of sales. Don't assume sales are evenly spread across all options.

**Seasonality** — some variations spike at certain times of year. A Christmas edition or a summer colour might show great sales in season and almost nothing outside of it. Always check the Keepa graph before buying.

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**The practical takeaway**

When you're looking at a variation listing, never just look at the top level sales figure and assume that's what your specific variant will do. Dig into the review split, check Keepa for that variation's Buy Box history, and make sure the variation you're actually buying has enough of its own demand to justify the purchase.


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