Answer:
$1263
Explanation:
Given: Beginning inventory 10 units at $55
First purchase 25 units at $60
Second purchase 30 units at $65
Third purchase 15 units at $70.
First, finding Total cost of available inventory to know weighted average cost.
Total cost= 
∴ Beginning inventory= 
First purchase= 
Second purchase= 
Third purchase =
.
Total units available for sale= 
Total cost of available inventory= 
Now, finding Weighted average cost.
Weighted average cost= 
Weighted average cost= 
∴ Weighted average cost= $ 63.125.
As given, 60 units sold during the year, which mean 20 units is still remaining out of total 80 units.
The value of ending inventory= 
∴ The value of ending inventory= 
∴ The value of ending inventory using average cost is $1263