Question

solve. round to the nearest tenth of a percent.
the graph below shows the number of passports, in millions, issued to u.s. citizens each year from 2007 to 2010. find the percent decrease in the number of passports issued from 2008 to 2009.
passports issued
(in millions)

Explanation:

Step1: Find the decrease amount

The formula for percent decrease is $\text{Percent Decrease}=\frac{\text{Original Amount}-\text{New Amount}}{\text{Original Amount}}\times100\%$.
The number of passports issued in 2008 is $16.2$ million (original amount), and in 2009 is $13.5$ million (new amount).
The decrease amount is $16.2 - 13.5=2.7$ million.

Step2: Calculate the percent decrease

Substitute the values into the formula: $\frac{16.2 - 13.5}{16.2}\times100\%=\frac{2.7}{16.2}\times100\%$.
$\frac{2.7}{16.2}\times100\%=\frac{270}{16.2}\%$.
$270\div16.2 = 16.66\cdots\approx16.7\%$.

Answer:

$16.7\%$