Answer:
a. Operating Income = Sales - Production Cost - Depreciation Expense
Operating Income = $100,000 - $82,600 - $6,000
Operating Income = $11,400
b. Average Investment = (Initial Equipment Cost + Residual Value) / 2
Average Investment = ($60,000 + $0) / 2
Average Investment = $60,000 / 2
Average Investment = $30,000
c. Accounting Rate of Return = (Operating Income / Average Investment) * 100
Accounting Rate of Return = ($11,400 / $30,000) * 100
Accounting Rate of Return = 0.38 * 100
Accounting Rate of Return = 38%
