If one unit of Product Z2 used $1.70 of direct materials and $3.70 of direct labor, sold for $10.00, and was assigned overhead at the rate of 22% of direct labor costs, how much gross profit was realized from this sale? (Round your intermediate calculations and final answer to two decimal places.) $.81. O $3.79. O $4.60 O $5.40 O $10.00.