Answer:
Cost of Goods sold= $ 671
Explanation:
On Jan 1 Units Purchased = 10
and Units on hand = 2
so goods sold = 10 - 2 =8
On Jan 18 Units Purchased = 50
and Units on hand = 5
so goods sold = 50 - 5 = 45
On Feb 20 Units Purchased = 20
and Units on hand = 6
so goods sold = 20 - 6 = 14
On march 15 Units Purchased = 10
and Units on hand = 6
so goods sold = 10 - 6 = 4
So, the cost of gods sold can be found by multiplying good sold on each day with its cost per unit and then adding them
cost of gods sold = goods sold on Jan 1 * Cost per unit + goods sold on Jan 18 * Cost per unit + goods sold on Feb 20 * Cost per unit +goods sold on March 15 * Cost per unit
cost of gods sold = 8*8 + 45*9 + 14*11 + 4*12
= 64+405+154+48
= 671