Current Attempt in Progress Oriole Computing. Inc. sells three types of computing devices. Information on these is as follows: 25% of total Laptop sales Unit contribution margin of $45 60% of total Tablet sales Unit contribution margin of $40 15% of total Unit contribution margin Desktop sales of $35 Based on this information, what is the weighted-average contribution margin (WACM)? $41.75 $42.00 $42.75 $40.50