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: (40% complete) Returns started in February Returns in process, February 28: (75% complete) Returns in process, February 1: Labor Overhead Labor, February (4,775 hours) Overhead, February 500 1,300 540 4,400 5,200 95,500 68,060 *Although the euro is used in most European markets, day-to-day business in the United Kingdom continues to be conducted in pounds sterling. Required: 1. Compute the following amounts for labor and for overhead: a. Equivalent units of activity. b. Cost per equivalent unit.