Help with this greatly appreciated!

Carpet Clean produces carpet cleaning products. Ultimate Clean is a one-step cleaner that is produced in a three-step process. The three phases of production consist of mixing, blending, and bottling. Below is a partial schedule of December's costs for each phase of production. Complete the schedule and respond to the questions that follow. Which department experienced a decrease in work-in-process during December? How much was transferred to finished goods Inventory? What will be reported as "work in process" at the end of December? If total finished goods inventory decreased by $180,000, and the selling price is equal to 200% of cost of goods sold, how much would be reported for Carpet Clean sales during December