> ## Documentation Index > Fetch the complete documentation index at: https://docs.omni.co/llms.txt > Use this file to discover all available pages before exploring further. # Pie or donut with custom legend > The code for this example can be used in the Markdown visualization to create a pie or donut chart with a customized legend. ## Setup Use this sample dataset and code to recreate this example in your own instance. 1. [Download the sample CSV](https://github.com/exploreomni/doc-sample-data/blob/main/visualizations/pie.csv). 2. Upload the sample CSV to your instance. Refer to the [Data input tables guide](/analyze-explore/data-input-csvs#adding-a-data-input-table-to-a-workbook) for instructions. 3. In a new query tab, select all the dimensions. Every field except `Pie Count` should be selected when you're finished. 4. On the **Results** tab, open the **Options** panel and enable [column totals](/analyze-explore/point-click-queries#column-totals). 5. In the `Session Count` totals cell, click the **...** menu and select **Total Calculation > Sum**. 6. Format the `Percent Of Total` column to **percentage** and adjust the decimal places to your liking. Your query should look like this: **Note:** To recreate this with your own data set, you'll need to create calculations for `Percent of Total`, `Slice Size`, and `Start Rotation`. These formulas reference the columns as they are in the above screenshot: * `Percent of Total` - `=B1 / SUM(B:B)` * `Slice Size` - `=B1 / SUM(B:B) * 360 // or Percent of Total * 360` * `Start Rotation` - `=SUM(D$1:D1)` // The sum of all the previous values of `Slice Size` - if you are copying this formula, enter it on the second row to get it to apply correctly Click **Chart** and select the **Markdown** chart type. Copy and paste the sample code below into the Markdown editor. ## Example code ```html expandable theme={null}

{{result._totals._first.pie.session_count.value}}Total sessions

```