Johnston Corp manulactuies computer desks in is, Philadephia, Pennsylania, plant. The company uses activity-basod cossting fo allocate af manufacturng conversion casts idrect labor and manulachuring overtead) its aciivies and related data follow IIt fCick the son to vow the actwity areas and ritated data ) Read the requerenents whole Gotar) Data table Johnston produced two styles of desks in March the Standard desk and Unpainted desk. Data for each follow 1. Compute the per-unit manufacturing product cost of Standard desks and Unpainted desks. 2. Premanufacturing activities, such as product design, were assigned to the Standard desks at $4 each and to the Unpainted desks at $2 each. Similar analyses were conducted of post-manufacturing activities, such as distribution, marketing, and customer service. The post-manufacturing costs were $21 per Standard and $20 per Unpainted desk. Compute the full product costs per desk. 3. Which product costs are reported in the external financial statements? Which costs are used for management decision making? Explain the difference