Problem 6-SA You are provided with the following information for Metlock Inc. for the month ended June 30, 2019. Metlock uses the periodic system for inventory. Unit Cost Date Description Quantity Selling Price June 1 Beginning inventory June 4 Purchase June 10 Sale June 11 Sale return June 18 Purchase June 18 Purchase return June 25 Sale June 28 Purchase x Your answer is incorrect. Try again. Calculate gross profit rate under each of the following methods. (1) LIFO. (2) FIFO. (3) Average-cost. (Round answers to I decimal place, e.g. 51,2%.) LIFO AVERAGE-COST Gross profit rate