Calculating Customer Value
It’s well documented that it’s easier to sell something to
an existing customer than it is to find new customers. An existing customer has
already given his trust (and money) to you, so it’s easier to persuade him to
buy again than it is to convince someone to buy who has never heard of you or
your business before.
When you are allocating funds for marketing, you should
consider more than just the initial purchase when you look at your cost of
acquiring customers. You should also look at the future revenue you might
derive from that customer. This concept is called calculating the “lifetime
value” of a customer. Although the calculations vary, the lifetime value of the
average customer (LVC) is essentially an estimate of your average sale (AS)
amount multiplied by the estimated number (EN) of times a customer reorders:
LVC = AS x EN
As an example, suppose you sell light bulbs for $2 each.
Your customer Fred buys at least three light bulbs for his house every year
from you. He lives in the area for 10 years and gets new light bulbs every
year. The lifetime value of Fred as a customer is:
$60 = $6 x 10
Of course, this calculation is far easier if you have been
in business for many years. Determine your average customer order amount by
dividing your total sales by the number of sales you have. Calculating how
often customers reorder is a little trickier because you have to remove the
customers that haven’t ended their relationship with you from the equation. If
you have been in business for a while, you can take a random sample of
customers who haven’t ordered in the last year and look at their first order
date and their last order date.
Once you have determined the LVC, you can subtract out your
costs and get a feel for what you can spend to acquire a new customer. Of
course, you’ll need to take your cash flow and other budgeting considerations
into account as well, but figuring out the LVC is a good starting point.
Performing these calculations also acts as a wake-up call when
it comes to customer service. Retaining your existing customers by treating
them well and communicating with them effectively increases the length of time
customers do business with you (that is, it increases their lifetime value).
Using the light bulb example again, suppose Fred only buys light bulbs for two
years, instead of 10. Now his lifetime value is:
$12 = $6 x 2
Multiply that $48 loss by an entire customer base and you
can see why it’s important for a business to retain customers for as long as
possible. Retaining customers involves keeping them aware and active with your
business. Newsletters and promotions encourage interaction and communication.
Even if you just send out a thank you note or a birthday card, you remind those
customers that you exist and that you are happy to have them as customers. A
few small efforts like these can yield big results in your bottom line.
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