- The following table shows the number of cakes that could be baked daily at a local bakery, depending on the number of bakers. Number of bakers Number of cakes Calculate M PL. Do you observe the law of diminishing marginal returns? Explain. Suppose each cake sells for $10. Calculate the MRPL. Draw the MR PL curve, which is the demand curve for bakers. If each baker is paid $80 per day, how many bakers will the bakery owner hire, given that the goal is to maximize prots? How many cakes will be baked and sold each day? sup-pm