Starforce Avionics makes aircraft instrumentation. Its basic navigation radio requires $ 60 in variable costs and $ 2 comma 000 per month in fixed costs. Further processing the radio, to enhance its functionality, will require an additional $ 25 per unit of variable costs but no change to the fixed costs. The marketing manager believes that the company would be able to increase the sales price from $ 260 to $ 280. If Starforce decides to further process the product, operating income would