At Corner Bakery, the average customer in the "Young Mothers" segment brings in $101 in annual margin to the firm. In turn, Corner Bakery spends $24 per customer each year on retention communications. Acquiring a customer in this category costs the Corner Bakery an average of $64. Corner Bakery's retention rate for these customers is 83%. If the company maintains a discount rate of 12%, calculate customer lifetime value for 1 "Young Mothers" customer. Rounding: penny. Remember, the answer may be negative.
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Solution:
Customer lifetime value for 1 customer = 232
Calculations:
Earnings from each customer yearly = 101 - 24
= 77
Average earnings from each customer yearly
= 77
Earning next year from that customer= 77* 0.83
= 63.91
This is because the probability of retention of that customer is 0.83
This earning is of next year so it has to be discounted by 12% every year this will happen
So we derive a geometric series
77 + 770.83/1.12 + 77(0.83/1.12)2 + ..........
THIS WILL BE AN INFINITE SERIES
Sum of infinite geometric series = a/(1-r)
here, a= 77
r = 0.83 / 1.12
r = 0.74
Sum = 77 / (1 - 0.74)
= 296
Total earning from a customer during lifetime = 296
Cost of acquiring = 64
Customer lifetime value for 1 customer = 296 - 64 = 232
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