Cullumber Mills management is evaluating two alternative heating systems. Costs and projected energy savings are given in the following table. The firm uses $\backslash (11\mathrm{.}50\backslash )$ percent to discount such project cash flows. What is the NPV of the systems? $($Enter negative amounts using negative sign, e$.$g$.-45\mathrm{.}25.$ Do not round discount factors and intermediate calculations. Round final answers to $0$ decimal places, e$.$g$.5,275.)$ NPV of system $100$ is NPV of system $200$ is Which system should be chosen? Cullumber should choose