Retention Data Generator with Chart.js Visualization

Instructions:

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Goal	Use Case	Expected Outcome
Compute retention metrics	Analyze attendee drop-off over time (e.g., webinar)	Provide summary stats and visual chart of audience engagement

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Retention Data

Average retention: (Total minutes watched) / (Initial attendees × Webinar length) × 100
Average watch time: (Total minutes watched) / (Number of participants)
Retention at halfway: (Attendees remaining at half duration / Initial attendees) × 100
Retention at end: (Attendees remaining at end / Initial attendees) × 100

Time Interval	Retention (%)

Time Spent (Minutes)	Number Remaining	Retention (%)