Solve the Problem $\$ 50$ A Month to About $\$ 44$ What Was the Percent of Decrease?
A)

Solve the problem.
-By switching service providers, a family's telephone bill decreased from about $\$ 50$ a month to about $\$ 44$ . What was the percent of decrease?

A) $13.6 \%$
B) $12 \%$
C) $13 \%$
D) $6 \%$