Over a 10-Year Period, a Grocery Store Chain Increased Its $\%$

Multiple Choice

Over a 10-year period, a grocery store chain increased its number of stores from 470 to 520. What was the percent increase in the number of stores? Round your answer to the nearest tenth of a percent.

A) 11.6 $\%$
B) 10.6 $\%$
C) 50.0 $\%$
D) 1.1 $\%$
E) 10.7 $\%$