The Shirt Shop had the following transactions for T$-$shirts for Year $1,$ its first year of operations:

January $20$ Purchased $400$ units @ $ $8=$ $ $3,200$

April $21$ Purchased $200$ units @ $ $10=2,000$

July $25$ Purchased $280$ units @ $ $13=3,640$

September $19$ Purchased $90$ units @ $ $15=1,350$

During the year, The Shirt Shop sold $810$ T$-$shirts for $$20$ each.

Required

a$.$ Compute the amount of ending inventory The Shirt Shop would report on the balance sheet, assuming the following cost flow assumptions: $(1)$ FIFO, $(2)$ LIFO, and $(3)$ weighted average.