<b>Engagement rate falls ~0.9 points for every 10x in follower count.</b>

<b>Engagement rate falls ~0.9 points for every 10x in follower count.</b>

Median ER (likes+comments+saves / followers):
5k ████████░░ 6.1%
50k ██████░░░░ 4.3%
500k ████░░░░░░ 2.8%
5M ██░░░░░░░░ 1.6%

Decay is near-logarithmic, so a 50k account at 4.3% is unremarkable, while a 500k account holding 4.3% is two standard deviations rich. Judge ER against the tier band, never the headline percentage.

So what: a flat ER curve as an account grows is the real signal worth paying for.

Benchmark: n=3,140 accounts, Instagram, Q1–Q2.