Required information [The following information applies to the questions displayed below.] Scrooge and Zilch, a public accounting firm in London, is engaged in the preparation of income tax returns for individuals. The firm uses the weighted-average method of process costing for internal reporting. The following information pertains to February. ( denotes the British monetary unit, pounds sterling.) Returns in process, February 1: (34% complete) Returns started in February Returns in process, February 28: 440 1,180 (75% complete) 480 Returns in process, February 1: Labor Overhead Labor, February (7,100 hours) Overhead, February 3,800 4,800 120,700 56,700 *Although the euro is used in most European markets, day-to-day business in the United Kingdom continues to be conducted in pounds sterling.