ABC corporation has on January 1, 3,000 units were in process-- 80% complete in regards to materials and 70% complete in regards to conversion costs--at a cost of materials of $38,120 and a cost of conversion costs of $40,950; during January 19,000 units were started; during January materials costs of $282,000 and conversion costs of $378,000 were added to production; during January 20,000 units were completed; on January 31, 2,000 units were in process--60% complete in regards to materials and 50% complete in regards to conversion costs; 500 of the completed units were spoiled; company-wide standards state that a spoilage rate of 2% of completed units is considered to be normal; spoilage is detected at the end of the manufacturing process; it is assumed that the spoiled units came entirely from the units started and completed during January. 

Require: prepare production schedule by using 

1. weighted average process costing system 

2. FIFO process costing system