An investment center generated a contribution margin of $300,000, controllable fixed costs of $100,000 and sales of $1,000,000. The center's average operating assets were $400,000. How much is the return on investment? 50% 250% 0 75% 25% A company has a minimum required rate of return of 8% and is considering investing in a project that costs $140,000 and is expected to generate net cash flows of $46,000 at the end of each year for four years. The net present value of this project (rounded to whole dollars) is $15,758 $11,200 $12,358 $44,000