Final answer:
To calculate the estimated percent increase in net operating income, we use the formula for the degree of operating leverage (DOL).
Step-by-step explanation:
To calculate the estimated percent increase in net operating income, we need to use the formula for the degree of operating leverage (DOL). DOL is calculated by dividing the percentage change in net operating income by the percentage change in sales.
First, we need to determine the current net operating income (NOI) based on the sales volume of 1,000 units. From the given information, NOI is $6,160.
Next, we need to calculate the new net operating income (NOI) after a 5% increase in sales. To do this, we can use the percentage change in sales (5%) and multiply it by the current NOI ($6,160).
Finally, we can calculate the estimated percent increase in net operating income by dividing the new NOI by the current NOI, subtracting 1, and multiplying by 100.