The LIFO method is used to calculate the precent of retail and Current cost to retail % is 67 percent.
Explanation:
Ending inventory at retail as on 12/31/2022 converted to cost = 50600 by1.1 = 46000
Inventory as on 12/31/2021 converted to cost = 42400 by 1.06 = 40000
Inventory added during 2021 = 40,000 minus 30,000 = 10,000
Inventory added during 2022 = 46000 minus 40000= 6000
Inventory layers at base year retail prices:
Beginning inventory = 30000 into 1 into 70% = 21000
Layers added during 2021 = 10000 into 1.06 into 80% = 8480
Layers added during 2022 =6000 into 1.1 into 67% = 4422
Inventory as on 31/12/2022 at cost = 21000 plus 8480 plus 4422 = 33902
Therefore, Current cost to retail % = 66330 by 99000 = 67%