Oslo Company's industrial photo finishing division, the, incurred the following costs and expenses in the last period: Variable Direct material $196,000 Direct labour 115,000 Factory Overhead 76,000 $42,000 General, selling and administrative 34.000 49.000 Total $441,000 590,000 During the penod, Rhe produced 300,000 units of industrial photo prints, which were sold for $1.96 wach. Oslo's investment in Rho was $400,000 and $540,000 at the begining and ending of the wat respectively. Oslo's weighted average cost of capital is 15% Determine Pho's return on investment for the year (Round answer to 2 decimal facex, o, 25.255) ROL Compute Rho's residual income se for the year. (Enter oss using either a gative in preceding the needs theses Reidun income How minuta photo print und Rho have to all duro they break (entry to what Breve quantity What was Rho's contribution margin for the year? Contribution margin