Final answer:
To determine the revised net operating income from increasing sales volume by 30 units, multiply the marginal revenue per unit by the number of additional units. If marginal revenue is $1000 per unit, the increase would be $30,000, assuming constant costs and no other changes.
Step-by-step explanation:
To calculate the revised net operating income with an increased sales volume of 30 units, we first need to understand the concept of marginal revenue (MR). As seen from the information provided, when output increases from 1 to 2 units, the total revenue increases from $1200 to $2200, hence the MR for the second unit is $1000 ($2200 - $1200).
If we continue to receive an additional $1000 for each additional unit sold, selling 30 more units would increase total revenue by 30 units × $1000/unit = $30,000. This increased revenue contributes directly to an increase in the net operating income, assuming costs remain constant per unit and there are no other changes to operating expenses or capital costs. Lastly, it is also important to consider the opportunity cost of using the land which could be rented for $30,000 per year; this cost should be factored into economic profit calculations but is not typically included in net operating income.