A well-written chart caption is not evidence that the calculation behind it is correct.
Understand the idea
Scenario: A manager asks an AI assistant to write a monthly project summary from notes. It reports that training completion improved by 18%. The original spreadsheet actually records a rise from 72% to 82%—a 10 percentage-point increase, or about 13.9% relative growth.
The mistake sounds plausible. A colleague notices that the slide says “18% improvement” without defining whether this is a percentage-point or relative change. The report is scheduled for leadership distribution in an hour.
Why it matters at work
Professionals need a clear separation between calculation, interpretation and narrative. The assistant can draft text, but accountable staff must verify every consequential number against source records.
How to use it, step by step
- Pause distribution until the measure definition is confirmed.
- Find the original approved data and calculate both absolute and relative changes.
- Correct the wording to “up 10 percentage points, from 72% to 82%” if that accurately describes the data.
- Review surrounding claims for unsupported numbers, trends and dates.
- Add a source note and an owner for future checks.
Worked workplace example
The manager corrects the presentation before release and updates the team procedure: all AI-assisted management summaries require a simple evidence table with the exact source, reporting date, calculation and reviewer. The change does not ban AI; it makes the review more reliable.
Limitations and common mistakes
This case is fictional and simplified for learning. Similar errors can come from manual drafting, so the control should apply to important claims regardless of author. Do not use confidential spreadsheets with unapproved AI services.
Reflection and practice
Compute the change from 72% to 82% in both percentage points and relative percent. Which wording would your audience understand most clearly?
Use this as a thinking aid, not a substitute for organizational policies, technical expertise or professional judgement.