In One Month, the Sales of Calculators Were as Follows

In one month, the sales of calculators were as follows:   $$\begin{array} { l l r l } \text { Brand } A : & 31 & \text { Brand } D : & 78 \\\text { Brand } B : & 56 & \text { Brand } E : & 42 \\\text { Brand } C : & 14 &\end{array}$$ What central angle of a circle graph would show Brand B's sales as a percent of the total sales for the month?
Round your answer to the nearest tenth.

A) 106.2^o
B) 99.2^o
C) 91.2^o
D) 83.2^o
E) 73.2^o