1
The probability of selling to an
existing customer is 60–70%.
The probability of selling to a
new prospect is 5–20%.

Marketing Metrics

2
A 2% increase in customer
retention has the same effect
as decreasing costs by 10%.

Leading on the Edge of Chaos,
Emmet Murphy & Mark Murphy

3
Price is not the main reason
for customer churn, it is actually
due to the overall poor quality
of customer service.

Accenture

4
A customer is 4 times more
likely to defect to a competitor if
the problem is service-related rather
than price
-or product-related.

Bain & Company

5

For every customer complaint there are 26 other
unhappy
customers who have remained silent.

Lee Resource

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6
Happy customers who get their
issue resolved tell about 4–6
people
about their experience.

White House Office of Consumer Affairs

7
70% of buying
experiences are based on
how customers feel
they are being treated.

McKinsey & Company

8

A dissatisfied customer
will tell between 9 and 15 people
about their experience. Around
13% of dissatisfied customers
tell more than 20 people.

White House Office of Consumer Affairs

9

Customers who rate you
5 on a scale from 1 to 5
are 6 times more likely
to buy from you again,
compared to only giving
you a score of 4.8.

TeleFaction

10
96% of unhappy customers
don’t complain, however 
91% of those will simply leave
and never come back.

Financial Training Services

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11
It costs 6 – 7 times more to
acquire a new customer than
retain an existing one.

Bain & Company

12

eCommerce spending for new customers is on average $24.50, compared to $52.50 for repeat customers.

McKinsey & Company

13

55% of customers would
pay extra to guarantee a
better service.

deFacto Research

14
A 5% reduction in the
customer defection rate can
increase profits by 5 – 95%.

Bain & Company

15
It takes 12 positive
experiences
to make up
for one unresolved
negative experience.

“Understanding Customers” by Ruby Newell-Legner