Follower growth rate
New followers in a period divided by the starting count, as a percentage. More honest than raw follower gain because it scales: a hundred new followers is remarkable on a thousand-follower account and invisible on a hundred thousand.
Related terms
Deciding which touchpoints get credit for a conversion. Every model is a simplification: last-click undervalues awaren…
Average view durationMean seconds watched per view. Read it alongside video length as a percentage: sixty seconds of a ninety-second video …
Bounce rateThe share of visitors who land on a page and leave without a further interaction. High bounce from social is normal an…
CPA (cost per acquisition)Spend divided by the number of completed actions such as purchases or leads. The main efficiency number for performanc…
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CPM (cost per mille)The cost of a thousand impressions. A market price, not a performance measure: it rises with competition, audience nar…
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