# Commission calculation
**Commissionable sale** is the sale value that BixGrow uses to calculate your affiliates' commission. It may be the same sale value as shown on Shopify, or the actual sale including discounts/shipping fees/taxes depending on your selection.
{% hint style="info" %}
Please note that the discount value is a negative number by default (for example a $20 discount will become -20 in the Commissionable sales calculation).
{% endhint %}
To set up **Commissionable sales**, go to **Settings** > **General > Find Commission calculation**.
### **1. Includes Discounts**
If the **Discounts** checkbox is selected, the **commissionable sale** will be calculated by **subtracting** the discount value from the actual order's sale. This means that your affiliates' commission amount will **decrease** if the commission rule is **Percent of sale**. For other commission rules, the commission amount is not affected.
{% hint style="info" %}
In this example, if a customer places an order of $100 ($20 discount), the **commissionable sale** will be $100-20 = $80. The affiliate's program commission is 10% of sale, therefore it will be 10% of $80 = **$8**.
{% endhint %}
### **2. Includes shipping fees**
If the **Shipping** checkbox is selected, the **commissionable sale** will be calculated by **adding** the shipping fee from the actual order's sale. This means that your affiliates' commission amount will **increase** if the commission rule is **Percent of sale**. For other commission rules, the commission amount is not affected.
{% hint style="info" %}
In this example, if a customer places an order of $100 ($10 shipping), the **commissionable sale** will be $100+10 = $110. The affiliate's program commission is 10% of sale, therefore it will be 10% of $110 = **$11**.
{% endhint %}
### **3. Includes taxes**
If the **Tax** checkbox is selected, the **commissionable sale** will be calculated by **adding** the tax from the actual order's sale. This means that your affiliates' commission amount will i**ncrease** if the commission rule is **Percent of sale**. For other commission rules, the commission amount is not affected.
{% hint style="info" %}
In this example, if a customer places an order of $100 ($5 tax), the **commissionable sales** will be $100+5 = $105. The affiliate's program commission is 10% of sale, therefore it will be 10% of $105 = **$10,5**.
{% endhint %}
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