Checimy won Campbell Corporation's balance sheet indicates that the company has $540,000 invested in operating assets. During the year. Campbell earned operating income of $58,320 on $1,080,000 of sales Required a. Compute Campbell's profit margin for the year, b. Compute Campbell's turnover for the year. e. Compute Campbell's return on Investment for the year d. Recompute Campbell's ROI under each of the following independent assumptions: (1) Sales increase from $1,080,000 to $1.296,000, thereby resulting in an increase in operating income from $58,320 to $64,800, (2) Sales remain constant, but Campbell reduces expenses, resulting in an increase in operating income from $58,320 to $60,480, (3) Campbell is able to reduce its invested capital from $540,000 to $432,000 without affecting operating income Complete this question by entering your answers in the tabs below. Reg A toc Reg D Compute Campbell's profit margin, turnover and return on investment for the year. (Round "Profit margin" and "Return on investment to 1 decimal place (i.., 0.234 should be entered as 23.4).) % a. Profit margin b. Tumdvor Robum on Investment times