Passports. In 2006, approximately 71 million valid passports were in circulation in the United States.
This number increased to approximately 102 million
in 2011. What is the percent increase?

0.437%

Step-by-step explanation:

given:

initial number =  71 M

final number = 102M

increase = final number - initial number

= 102 - 71

= 31 M

Percent increase

= increase / initial number x 100%

= (31 / 71) x 100%

= 0.437%

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