Question 20 The cost of the production report which shows the costs calculated for direct materials and conversion costs, can be used to determine Changes in the per unit costs from one period to the next Changes in the sales price from one period to the next Changes in the materials inventory from one period to the next All of the above Moving to the next question prevents changes to this answer MacBook Air 30 - $ 4 & 7 2 1 96 5 3 .00 6 9 Q W E R T Y > U S D F G H J K * N V B N M ontrol option command