The Aniquilado Company uses process costing and has several production departments. Aniquilado uses the FIFO method. In the firm's first production department, all direct are added when the units are 50% complete with respect to conversion costs. This department has the following inventory information.

BWIP units (75% complete with respect to conversion costs): 4,500

Units completed: 375,250

EWIP units (40% complete with respect to conversion costs): 3,500

This period, the department has calculated the following cost per equivalent unit rates for direct materials and conversion costs.

$62.70 Direct material cost per equivalent unit

$32.60 Conversion cost per equivalent unit

What is the department's ending WIP balance for this period (round to cents if necessary)?

a. $219,450

b. $333,550

c. $45,640

d. Cannot be determined from this information