please answer with correct and detailed calculations and explanations. make sure supporting statements are also provided for each step and calculation.

Concord Corp. had always allocated MOH costs to its products using one cost driver: units produced. It made sense, as both products were of comparable size and went through the same process-though they did take different amounts of time in each area. She looked closely at the key activities and likely cost drivers and gathered the following information. Quantity of Cost Driver Activity Budgeted cost Cost Driver Marbled Solid Machining $167,400 Machine hours 2,600 3,600 Assembly 216,000 Direct labor hours 15,400 8,600 Quality control 79,800 Quality control hours 700 350 Total $463,200 Units produced 1,200 2,000 (a) Calculate the plant-wide MOH rate if Concord continues to use units produced as its only allocation base. Calculate the MOH costs per unit for each product: Marbled and Solid. (Round answer to 2 decimal places, e.g. 15.25.) Plant-wide MOH rate $ unit produced