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Quant: Cost Question

Bain BCG Mck quantitative
New answer on Dec 30, 2020
5 Answers
1.0 k Views
Anonymous A asked on Nov 24, 2020

Hi,

Can you please advise on how to set up the following problem?

Daisy Cosmetics store chain, which already has 8 stores, is about to expand by opening 5 more stores on different streets. The upfront costs to open these new stores are $39,000 in total. All other operating costs are the same as those of current stores, with the structure as follows: Operation costs: 15%, marketing costs: 10%, cost of goods sold: 45%, labor cost: 20%, and other costs: 10%. Total revenue of all stores during the first month after opening 5 new stores was $356,000, with the profit margin being 32%. Calculate the average cost of each current and new store (new store’s cost includes the upfront cost of opening ).

Many thanks!

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Indy (80+ only)
Skilled
replied on Nov 24, 2020
Actively preparing for McKinsey Final Round. Have gone through Bain final round. Shoot me a message if you want to prep a case!

Total Revenue = 356,000
Profit Margin = 32%

Profit Margin = 32% = (Revenue - Cost)/Revenue = (356,000 - Cost)/356,000

Cost = $242,080

Taking account the upfront cost for the new stores, so

$242,080 - $39,000 = $203,080

$203,080 / 13 stores = $15,621 cost/store

Not sure about this since I didn't use the cost structure breakdown provided.

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Ian
Expert
Content Creator
replied on Nov 24, 2020
#1 BCG coach | MBB | Tier 2 | Digital, Tech, Platinion | 100% personal success rate (8/8) | 95% candidate success rate

Hi,

I have a hunch that you're the same person that has asked the 3 other quant questions!

I think you're approaching this wrong (if I may).

Rather than spamming the Q&A to get the answer, you need to learn the logic.

Same goes with case types (you can't just memorize every case framework out there...you have to learn how to think about every case prompt individually).

So, I highly recommend you ernestly try to solve each of these problems on their own.Then, post here with your reasoning/thinking and then we can comment on that.

You're not going to ace the case by getting every answer to every question in the world. Rather, you'll learn by figuring out how to think about each one you see! Also, a coach can help you with this :)

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Clara
Expert
Content Creator
replied on Nov 26, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hello!

It´s an easy one if you solve it in an Excel line by line tbh.

However, you won´t have these questions when preparing for MBB.

Best,

Clara

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Gaurav
Expert
Content Creator
replied on Nov 28, 2020
#1 MBB Coach(Placed 750+ in MBBs & 1250+ in Tier2)| The Only 360 coach(Ex-McKinsey + Certified Coach + Active recruiter)

Hello, the most important aspect of solving such questions is not that you just tind here the right number. of calculating. You need to understand a way of how to solve it, so I mean that you need to improve your logical skills and understand to find an appropriate approach to make a solution and how to answer difficult questions.

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GB

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