The Cookie Shops' Purchases Are Equal to 73 Percent of the Following

The Cookie Shops' purchases are equal to 73 percent of the following month's sales.The accounts payable period for purchases is 30 days while all other expenditures are paid in the month in which they are incurred.Assume each month has 30 days.The company has compiled the following information $$\begin{array} { | l | r | r | r | } \hline & \underline { \text { May } } & \underline { \text { June } } & \underline { \text { July } } \\\hline \text { Sales } & \$ 8,400 & \$ 8,800 & \$ 9,600 \\\hline \text { Other expenses } & 1,300 & 1,400 & 1,400 \\\hline \text { Interest and taxes } & 500 & 600 & 700 \\\hline\end{array}$$ What is the total amount of the firm's disbursements for the month of June?

A) $8,132
B) $8,170
C) $7,410
D) $7,571
E) $8,424