Jammer Company Uses a Weighted Average Perpetual Inventory System and Reports

Jammer Company uses a weighted average perpetual inventory system and reports the following:
$$\begin{array} { | l | l | l | } \hline \text { August 2 } & \text { Purchase } & 10 \text { units at } \$ 12 \text { per unit. } \\\hline \text { August 18 } & \text { Purchase } & 15 \text { units at } \$ 15 \text { per unit. } \\\hline \text { August 29 } & \text { Sale } & 20 \text { units. } \\\hline \text { August 31 } & \text { Purchase } & 14 \text { units at } \$ 16 \text { per unit. } \\\hline\end{array}$$
What is the per-unit value of ending inventory on August 31?

A) $12.00
B) $13.80
C) $15.42
D) $16.00
E) $17.74