Assuming that the periodic inventory method is used, compute the inventory cost at July $31$ under each of the following cost flow assumptions. $($Round answers to $0$ decimal places, eg$.6,578.)$

$(1)$ FIFO.

$(2)$ LIFO.

$(3)$ Average$-$cost$.$

$\backslash$table$[[,\backslash$table$[[(1)],[$FIFO$]],\backslash$table$[[(2)],[$LIFO$]],\backslash$table$[[(3)],[$Average$-$Cost$]]],[\backslash$table$[[$Ending inventory at July$],[31]],$$$,$$$,$$