Inventory	12 Months Ended
Mar. 02, 2019
Inventory
Inventory	11. Inventory At March 2, 2019 and March 3, 2018, inventories were $604,444 and $581,090, respectively, lower than the amounts that would have been reported using the first‑in, first‑out (“FIFO”) cost flow assumption. The Company calculates its FIFO inventory valuation using the retail method for store inventories and the cost method for distribution facility inventories. The Company recorded a LIFO charge for fiscal year 2019 of $23,354, compared to a LIFO credit of $28,827 for fiscal year 2018 and a LIFO credit of $3,721 for fiscal year 2017. During fiscal 2019, 2018 and 2017, a reduction in non-pharmacy inventories resulted in the liquidation of applicable LIFO inventory quantities carried at lower costs in prior years. This LIFO liquidation resulted in a $5,884, $2,707 and $2,375 cost of revenues decrease, with a corresponding reduction to the adjustment to LIFO for fiscal 2019, fiscal 2018 and fiscal 2017, respectively.

11. Inventory

At March 2, 2019 and March 3, 2018, inventories were $604,444 and $581,090, respectively, lower than the amounts that would have been reported using the first‑in, first‑out (“FIFO”) cost flow assumption. The Company calculates its FIFO inventory valuation using the retail method for store inventories and the cost method for distribution facility inventories. The Company recorded a LIFO charge for fiscal year 2019 of $23,354, compared to a LIFO credit of $28,827 for fiscal year 2018 and a LIFO credit of $3,721 for fiscal year 2017. During fiscal 2019, 2018 and 2017, a reduction in non-pharmacy inventories resulted in the liquidation of applicable LIFO inventory quantities carried at lower costs in prior years. This LIFO liquidation resulted in a $5,884, $2,707 and $2,375 cost of revenues decrease, with a corresponding reduction to the adjustment to LIFO for fiscal 2019, fiscal 2018 and fiscal 2017, respectively.