How is % over baseline calculated?

Hi Jorge C., Please stand by as I search the Mixpanel knowledge base for an AI-powered answer. I normally take about 15 seconds or so. In case AI cannot answer your question, feel free to reach out to Mixpanel support at mixpanel.com/get-support. If you have follow-up questions for this thread, please tag me again with your question: @kapa.ai <follow-up question> 👋

The "% over baseline" in Mixpanel is calculated as the percentage difference between a segment (or time period) and a selected baseline value. Specifically, when you activate the “Percent change over Baseline” option, Mixpanel shows how much a metric for a given segment or time period has increased or decreased relative to the baseline.The formula is: LBKS% over baseline = ((value - baseline) / baseline) ** 100LBKSFor example, if your baseline segment has a value of 100 and another segment has a value of 120, the % over baseline for that segment would be ((120 - 100) / 100) ** 100 = 20%.This calculation allows you to easily see relative performance between different segments or time periods. When a segment is chosen as the baseline, it appears as a flat 0% line, since it is always 0% different from itself. The y-axis can go below 0 if a segment performs worse than the baseline. These values are also reflected in the segmentation table below the chart Comparison: Time, Baseline and Overall.

ℹ️ Tip: Mention @kapa.ai in the thread for follow-ups or DM the app for 1-to-1 help.

Let me check the knowledge base for you again. One moment! 📚

The baseline in Mixpanel comparisons is determined by the user’s selection. When using the “Increase over Baseline” or “Percent change over Baseline” options, you choose which segment or time period you want to set as the baseline. For example, if you are comparing product categories, you can select a specific category (e.g., "Home supplies") as the baseline. That segment will then appear as a flat 0% line, and all other segments will be compared against it for the calculation of percentage difference. The same logic applies when comparing time periods—the baseline is the period you select for comparison, such as the previous week or month Comparison: Time, Baseline and Overall.

ℹ️ Tip: Mention @kapa.ai in the thread for follow-ups or DM the app for 1-to-1 help.