Whispering Inc. uses LIFO inventory costing. At January 1, 2020, inventory was $211,879 at both cost and market value. At December 31,2020 , the inventory was $287,291 at cost and $270,300 at market value. Use an allowance account. Prepare the necessary December 31 entry under (a) the cost-of-goods-sold method (b) Loss method. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No entry" for the account titles and enter 0 for the amounts.)