Answer:
Purchases made during the year is $1300.
Step-by-step explanation:
The beginning Inventory is reported to be $3900
The ending inventory is reported to be $1400
The cost of goods sold, (Sales) is reported to be $3800
We can relate the above mentioned items using the formula
Ending Inventory = Beginning Inventory + Purchases - Sales
$1400 = $3900 + Purchases - $3800
Therefore the amount of purchase made during the year,
Purchases = $1400 - $100
= $1300.