a. What is the book value of the existing roaster? b. Calculate the after-tax proceeds of the sale of the existing roaster. c. Calculate the change in net working capital using the following figures: a. The remaining book value of the existing roaster is $. (Round to the nearest dollar.) b. The after-tax proceeds of the sale of the existing roaster will be $. (Round to the nearest dollar.) c. The change in net working capital will be $ 'Round to the nearest dollar.) d. The initial investment associated with the proposed new roaster will be $ (Round to the nearest dollar.)