Answer: The beef should be roasted.
Step-by-step explanation:
Sales revenue
Sell as is: 4000 × $3 = $12000
Processed further: = 4000 × $6.40 = $25600
Increase/Decrease in income: = $13600
Purchase cost:
Sell as is: 4000 × $4.50 = $18000
Processed further: = 4000 × $4.50 = $18000
Increase/Decrease in income: = $0
Cost of roasting:
Sell as is: 0
Processed further: = 4000 × $2.70 = $10800
Increase/Decrease in income: = -$10800
Net income = $13600 - $10800 = $2800
Since there is a net income of $2800 when they beef is roasted, therefore it should be roasted.