> ## Documentation Index > Fetch the complete documentation index at: https://www.referly.so/docs/llms.txt > Use this file to discover all available pages before exploring further. # How a reward was calculated > See exactly how Referly worked out a reward amount. Open a reward's Calculation tab to read the step-by-step trace from sale to Final Commission, and understand the commission-plan factors behind it. Every reward amount can be traced back to a reason. When you want to know why an affiliate earned exactly what they did — or a number looks wrong and you want to check it — Referly can show you the full working behind it, step by step. This page shows where to find that trace and how to read it. ## Open a reward's calculation From your [Rewards list](/docs/help-center/manage/rewards/overview), select the reward you want to look at. Its detail panel opens with two tabs: **Details** and **Calculation**. Start on **Details** to see the context around the reward: * **Date** — when it was recorded. * **Type** — whether it came from a **Sign Up**, a **Purchase**, or a **Bonus**. * **Commission Plan** — the plan whose terms set the amount. If the affiliate is on your baseline terms, this reads **Base Plan**. * **Revenue** — the value of the sale the reward is based on. The side panel shows the reward amount itself, the affiliate who earned it, and its payout status. Together these tell you *what* the reward is; the Calculation tab tells you *how* it got there. ## Read the calculation steps Open the **Calculation** tab. Referly lays out how the amount was worked out as a timeline you read top to bottom. Each step names one thing that was checked — the plan that applied, the rate it used, any rule or condition that was met — along with the outcome of that check. The last step, **Final Commission**, is highlighted in green and shows the amount the affiliate ended up earning. Reading down the steps, you can see the path from the sale to the final figure: which plan applied, whether the reward was a percentage of the sale or a flat amount, and whether any product-specific or conditional rule changed the result. If a reward wasn't given at all, the trace explains why — for example, a rule that wasn't met or a sale that didn't qualify. ## What shapes the amount The steps you see reflect how you set up the affiliate's [commission plan](/docs/help-center/getting-started/commissions/overview). Any of these can play a part: * **The rate** — a percentage of the sale, or a flat amount per sale. * **One-time or recurring** — whether the affiliate earns once, or on repeat payments from the same customer. * **Product-based amounts** — a [different reward for different products](/docs/help-center/getting-started/commissions/product-based), so the item bought changes the figure. * **Conditional rules** — [rules](/docs/help-center/getting-started/commissions/conditional-rules) that only pay, or pay more, when a condition is met, such as the order value, the product, or the coupon used. * **Multi-level commissions** — when you run [multi-level commissions](/docs/help-center/settings/program/multi-level-commissions), a step can show a reward passed up to an affiliate who recruited the one who made the sale. If the amount surprises you, the trace usually points straight to the setting responsible, so you know exactly which part of the plan to adjust. ## When no calculation is shown Some rewards don't have a trace to show. If you open the Calculation tab and see **Decision trace is not available for this transaction**, it's usually because the reward wasn't produced by the plan engine in the normal way — for example a sale you [imported](/docs/help-center/manage/rewards/import) with the commission already set, or a reward added by hand. The reward amount is still shown on the Details tab; there just isn't a step-by-step breakdown to walk through. ## Related Set the rates and terms the calculation follows. Pay a different reward depending on the product sold. Change the reward when certain conditions are met. A tour of the Rewards page and every column.