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Anonymous A
on Jun 14, 2025
Europe
Question about

Market penetration

Why is 90% market penetration used in the revenue calculation? Doesn't that mean 90% of customers already own a camera and are unlikely to buy a new one? Shouldn't the focus be on the remaining 10% who haven’t purchased yet?

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Top answer
Alberto
Coach
on Jun 14, 2025
Ex-McKinsey AP | Training top candidates to perform at MBB level and win the offer

Hi there,

Market penetration refers to customers buying a camera that year. Penetration growing slower year or year means revenues grow slower as well.

Best,

Alberto

Mariana
Coach
on Jun 15, 2025
Free CV evaluation | xMckinsey | 1.5h session | +200 sessions | Free 20-min introductory call

Hi there,

It does seem a little ambiguous considering that this is not a recurrent purchase and we’re talking about the percentage of the addressable market that will buy during that year in order to calculate revenues. 
Good question. Always make sure to bring up your POV when your logic is different from the interviewers one, sometimes cases can be interpreted in more than one way.

Best,

Mari

4 hrs ago
#1 rated McKinsey Coach | top MBB coach
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