Unit cost estimate: Estimate the total margin associated with one suit rental
Net margin = Gross margin – Shipping cost – Stitching/ Repairs – SG&A
Hence,
$75 - $20 - $10 - $20 = $25 (23% of revenue)
Key insight
Unit economics are much improved. In order to compare apples-to-apples with prior unit economics, should take a 10% “haircut” from net margin (so $22.50 or 20.4%) to account for customer attrition. New average net margin is higher than $10 so company should move forward with price increase.
Make sure interviewee is able to accurately recalculate gross margin. If interviewee fails to take 10% haircut for attrition, ask them how they would account for attrition. Ensure interviewee acknowledges the attrition and, ideally, gets to $22.50 before moving on.
Customer Lifetime Value (LTV)= Annual revenue / Annual churn rate
By dividing annual revenue by the churn rate, you are calculating the stream of revenues that will come from a single customer (each subsequent year will deliver, on average, 40% of the revenue of the prior year until it gets to zero).
Hence,
Customer LTV = ($10 * 2) / 40% = $20 / 40% = $50
Key insight
Though customer lifetime value is positive, it is less than CAC so Tuxedo is losing money on every customer
Ensure the interviewee accurately calculates LTV, acknowledges additional costs and once given CAC, is able to calculate compare to LTV. Interviewee may get stuck analysing churn rate and if so, ask them to conceptually walk you through how they’d consider churn. If answer is satisfactory, provide them with the LTV formula.
Customer LTV = Annual revenue / Annual churn rate
By dividing annual revenue by the churn rate, you are calculating the stream of revenues that will come from a single customer (each subsequent year will deliver, on average, 40% of the revenue of the prior year until it gets to zero).
Hence,
Customer LTV = ($25 * 2) / 40% = $50 / 40% = $125
Key insight
Customer LTV is now positive and greater than CAC meaning Tuxedo is making money on every customer!
Ensure the interviewee accurately calculates LTV, acknowledges additional costs and once given CAC, is able to calculate compare to LTV. Interviewee may get stuck analysing churn rate and if so, ask them to conceptually walk you through how they’d consider churn. If answer is satisfactory, provide them with the LTV formula.
If needed share Exhibit 8 with the interviewee
4. Revenue growth opportunity analysis
Suppose Tuxedo has the opportunity to partner with a famous designer. What would you consider in evaluating this partnership?
Exhibit 9
Suggested areas of focus:
- Volume:
- New customers- will this partnership tap into a new demographic of customers or convince customers who are “on the fence”?
- Existing customers- with this partnership increase occasions among existing customers?
- Price: Does this partnership increase the price we can charge for rentals? Is the designer popular with our target customer?
- Cost: What are the costs of this partnership? Will this cut into our already thin margins?
Make sure the interviewee builds a logical structure that includes some thought around incremental volume, incremental price charges and incremental costs. We are examining the incremental impact of this partnership because we want to know what it will bring over-and-above what we could have done ourselves.
If needed share Exhibit 9 with the interviewee
5. Ecommerce funnel
In examining the business, you are asked to evaluate the ecommerce funnel. If 100 emails are sent, how many customers ultimately transact?
Share Exhibit 10 with the interviewee and ask for the number of customers who transact
Exhibit 10
Transaction count: The number of customers in the funnel who ultimately transact
# of customers who ultimately transact: 100 * % open rate * % CTO * % add-to-cart * (1- % cart abandon)
Hence,
# of customers who ultimately transact: 100 * 25% * 80% * 50% * (1- 90%) = 1 customer
This formula calculates the number of people moving through the funnel from step-to-step.
Key insight
1% conversion rate is low. Key issue is in the cart abandon stage.
Interviewee needs to be able to develop logic to calculate conversion rate and acknowledge it is low. Bonus if interviewee offers recommendations for how to solve cart abandons (trigger emails, optimize XO).
Interviewee should summarize each of the questions that you’ve gone through and share recommendations for improvement. Interviewee should lead with a recommendation on what the client should do and if the interviewee touches on next steps, this is a stellar answer.