What MAX does
Return the highest value in a column. In Power BI, the key is not only the formula itself but how it behaves with slicers, relationships, visuals and totals.
Syntax or pattern
MAX(column)5 practical business examples
MAX in a sales report
Add all revenue values from the Sales table.
Total Sales = MAX(Sales[Sales Amount])Use this as a base measure for revenue cards, trends and comparisons.
Total quantity sold
Add the number of units sold.
Total Quantity = MAX(Sales[Quantity])Useful for volume reports and inventory analysis.
Total discount amount
Summarize discounts from transactions.
Total Discount = MAX(Sales[Discount Amount])Use this to monitor promotional cost.
Total cost
Add cost values for margin calculations.
Total Cost = MAX(Sales[Cost Amount])This can feed profit and margin measures.
Total hours
Add hours logged by employees or projects.
Total Hours = MAX(Timesheets[Hours])Useful for utilization, billing and workforce reports.
Common mistakes to avoid
- Using MAX before checking whether the data model has the right relationships and filter direction.
- Writing one complex measure instead of creating simple base measures first.
- Testing only at the total level and not checking row, category and date contexts.
- Forgetting that slicers, visuals and relationships can all change the filter context.
FAQ
When should I use MAX in DAX?
Use MAX when the calculation pattern matches the business question and the result behaves correctly in the current filter context.
Why is my MAX measure returning the wrong total?
Most total issues come from row context, filter context, relationships, or using a column aggregation where an iterator or CALCULATE pattern is needed.
Can I use this MAX pattern in a calculated column?
Some patterns work in calculated columns, but most reporting calculations should be measures so they respond to slicers and report filters.
Here are some ideas for you
Optional resources that may help if you are learning Power BI, building dashboards, or writing DAX measures often.
- Power BI booksSee ideas
Learn modeling, report design and DAX patterns with structured references.
- DAX booksSee ideas
Keep a DAX reference close when building measures and troubleshooting context.
- Data visualization booksSee ideas
Improve charts, dashboards and storytelling beyond the formula itself.
- Ultrawide monitorsSee ideas
Useful for viewing the report canvas, data model and DAX editor side by side.
- Ergonomic mouseSee ideas
Helpful during long report-building and data-modeling sessions.
- Dashboard planning notebooksSee ideas
Sketch relationships, measures and report layouts before building.
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