Monty sells a snowboard, EZslide, that is popular with snowboard enthusiasts. The following is information relating to Monty's

beginning inventory and purchases of EZslide snowboards during September. During the same month, $100$ EZslide snowboards were

sold. Monty uses a periodic inventory system.

Compute the ending inventory at September $30$ and the cost of goods sold using the FIFO, LIFO, and average$-$cost methods. $($Round per

unit cost to $3$ decimal places, e$.$g$.15\mathrm{.}647$ and final answers to $0$ decimal places, e$.$g$.5,125.)$

$**$DO NOT USE EXCEL WALK THROUGH STEP BY STEP