Chapter 9 - Basic Algebra - 9.3 Multiplying and Dividing Signed Numbers - 9.3 Exercises - Page 647: 98

$$ 494,000 \ customers$$

To find the number of customers lost per year, we multiply the number of customers lost per week by the number of weeks in a year, which is 52. Doing this, we find: $$ = 9500 \times 52 \\ = 494,000 \ customers$$