Final answer:
To find the sales price level that would give the desired results, calculate the operating income for the current and potential sales prices, and then determine the price level that will give the desired increase in operating income.
Step-by-step explanation:
To find the sales price level that would give the desired results, we need to calculate the operating income for the current sales price and the potential sales price after the computer quality upgrade.
Current operating income = (sales price - variable cost) * number of units - fixed costs
Potential operating income = (sales price + upgrade amount - upgraded variable cost) * number of units - upgraded fixed costs
By setting up and solving these equations, we can find the sales price level that will give the desired increase in operating income.
After performing the calculations, the sales price level that would give the desired results is $394.25 per unit (option b).