Rho Company makes organizers. Information on cost per unit is as follows: $1.50 1.10 Direct materials Direct labor Variable overhead Variable marketing expense 0.80 0.50 Fixed marketing expense totaled $25,000 and fixed administrative expense totaled $35,000. The price per organizer is $10. What is the contribution margin per unit? $3.90 $6.60 $6.10 O $3.40