Social Media Engagement Rate Calculator — illustrative example

INPUT
120 interactions and 4,000 impressions; use interactions divided by impressions.

RESULT
Engagement rate: 3%. Definition: 120 ÷ 4,000 × 100; follower-based rates are a different measure.

REVIEW
Engagement rates are only comparable when the denominator and included interactions match. Display the formula beside the result.

This is a teaching example, not a live execution record.