A LinkedIn ad campaign generates 20,000 impressions in one week. During that period, the ad receives 1,000 reactions, shares, and comments, plus 500 clicks — 1,500 total engagements.
Campaign Engagement Rate = 1,500 / 20,000 = 7.5%
That result means 7.5% of people who saw the ad chose to interact with it in some way.
