AI data-visualization tools: correct the chart before the story
Evidence date: 2026-10-07

Decision criteria
Capacity, tenant settings and the supplied data model.

Editorial evaluation scenario
Fictional store records 100 orders in week A and 110 in week B. A bar chart starts its axis at 95.
Recalculate the percentage from the supplied values. Show whether the chart uses counts or rates, and inspect whether axis choices exaggerate a small change.
Capacity, tenant settings and the supplied data model.

Input / draft / final edit
Fictional store records 100 orders in week A and 110 in week B. A bar chart starts its axis at 95.
Orders doubled because the second bar looks twice as tall.
Orders increased by 10, or 10%. Use a zero baseline for this bar comparison and label the same weekly period for both values.

Before buying
Microsoft Power BI
Documented: Microsoft documents Copilot in Power BI and its requirements.
Check: Capacity, tenant settings and the supplied data model.
Manual or conventional route
Documented: Use a spreadsheet chart when the dataset is small and the arithmetic can be inspected directly.
Check: Editorial workflow advice; this is not a measured comparison or vendor performance claim.

Official sources
https://learn.microsoft.com/en-us/power-bi/create-reports/copilot-introduction

Record your own test: selected plan, date, input, output, corrections, export and total cost. This sheet does not claim a vendor test.