Inacio Corporation uses the weighted-average method in its process costing system. Data concerning the first processing department for the most recent month are listed below:

Beginning work in process inventory:

Units in beginning work in process inventory 2,200

Materials costs $ 14,300

Conversion costs $ 6,400

Percent complete with respect to materials 75 %

Percent complete with respect to conversion 20 %

Units started into production during the month 10,900

Units transferred to the next department during the month 9,800

Materials costs added during the month $ 173,400

Conversion costs added during the month $ 243,400

Ending work in process inventory:

Units in ending work in process inventory 3,300

Percent complete with respect to materials 90 %

Percent complete with respect to conversion 30 %

The cost per equivalent unit for materials for the month in the first processing department is closest to:

Multiple Choice

$12.53

$13.47

$12.22

$14.70