Trooper company has provided the following inventory data for the year:

transaction units cost per unit

$1/1$ balance $65$ $$8$

$2/14$ sale $25$

$5/23$ purchase $101$ $$10$

$8/21$ sale $51$

$11/5$ purchase $25$ $$15$

$11/18$ sale $95$

required:

compute the cost of goods sold and the ending inventory using periodic inventory system for each of the following cash flow assumptions:

a$.$ FIFO

b$.$ LIFO

c$.$ weighted average