Improve this chart's labels and annotations for [audience].
Use the attached table and measure definition as the authority.
Keep every source value, period and denominator unchanged.
State the measure, currency/unit and date range in the chart.
If you scale displayed values, label the scale and show the conversion.
Do not infer profit, causation, a forecast or an explanation of change
from a revenue series alone. Return the chart and a label-change record.

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Inspect the exported chart against the source table. For each point,
show its source period, raw value, display value and unit conversion.
Flag a title that changes the measure, a missing period or an annotation
that claims a reason the source does not give. Preserve an accessible
text summary and the underlying data table.

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The source measure is Revenue in GBP, not Profit in millions.
Correct the title and units, keep the three original values and periods,
and remove unsupported causal commentary. Show exactly which labels
changed. Return a readable chart plus its source table and text summary.
