For the year ending December 31, 2017, Cobb Company accumulates the following data for the Plastics Division which it operates as an investment center: contribution margin—$700,000 budget, $710,000 actual; controllable fixed costs—$300,000 budget, $302,000 actual. Average operating assets for the year were $2,000,000. Prepare a responsibility report for the Plastics Division beginning with contribution margin.