What is year-over-year (YoY) analysis?

< 1 min read

Year-over-year (YoY) analysis compares a metric for one period with the same period in the previous year.
In one project, we compared December 2025 sales with December 2024 to measure growth.
It helps account for seasonality and recurring patterns.
YoY highlights trends and growth rates over time rather than absolute values.
It’s commonly used for revenue, profit, or customer metrics.
As a BA, I use it to show performance improvement or decline to stakeholders.
YoY provides context for business decisions and strategic planning.
Overall, it standardizes comparison across periods to evaluate true progress.

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