← Practice challengesFree companion · 15 minute suggested activity

Write a precise comparison headline

Visualization practice · A useful chart makes its units, population and limitations inspectable.

Learn → Try → ExplainReviewed 2026-10-15

Your task

Write one sentence explaining the April-to-May retail change. Sketch the view and write an accessible text alternative.

Hint

Start with the decision and the comparison. Avoid decorative marks that compete with the evidence.

Worked solution

Completed order value rose from EUR300 to EUR400, an increase of EUR100 (33.3%) in this fictional extract. The chart does not show why it changed or whether the change will persist.

Review checklist

Can someone recover the values, period, population and denominator from the chart and text? State one conclusion the evidence does not support.

Make the reasoning yours.

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