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Anonymous A

on Jul 03, 2023

Global

Question about

Total Commissions per Product of RetailBankingCo

Total comm. per product RetailBankingCo = $4 + $80 × 5% × 3 = $16 < $80

If it is per product why is it multiplied by 3

And why is it multiplied by 3, not 4?

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Top answer

Cristian

Coach

on Jul 06, 2023

#1 rated McKinsey Coach

Hi there,

Basically, you need to multiply by the average lifetime of a product, which is 3 years, not 4.

Best,
Cristian

Hagen

Coach

edited on Jul 03, 2023

#1 recommended coach | >95% success rate | 8+ years consulting, 8+ years coaching and 7+ years interviewing experience

Hi there,

Thank you very much for this question. I would be happy to share the solution to it:

In section “Background”, it is stated "The average lifetime of these four products is three years.”
As such, given that the trailing commission is by definition paid on a yearly basis, one needs to multiply the trailing commission by 3.

If you would like a more detailed discussion on how to best prepare for your upcoming interviews, please don't hesitate to contact me directly.

Best,

Hagen

Ian

Coach

on Jul 03, 2023

Top US BCG / MBB Coach - 5,000 sessions |Tech, Platinion, Big 4 | 9/9 personal interviews passed | 95% candidate success

Hi there,

Great question! Hagen has already answered, but make sure to read all sections of a case to better understand. Additionally, these are the types of “tricks” that are common in cases so the interviewer can check that you are thinking rationally about things (even if you have not “learned” that exact thing)