Drilling Company uses activity-based costing and provides this information:

Manufacturing Activity	Cost Driver	Driver Rate
Materials handling	Number of parts	$	0.4
Machinery	Number of machine hours		61
Assembly	Number of parts		3.35
Inspection	Number of finished units		40

Drilling has just completed 90 units of a component for a customer. Each unit required 110 parts and 3.50 machine hours. The prime cost is $1,400 per finished unit. All other manufacturing costs are classified as manufacturing overhead.

Required:

1. Compute the total manufacturing costs and the unit costs of the 90 units just completed using ABC costing.

2. In addition to the manufacturing costs, the firm has determined that the total cost of upstream activities, including research and development and product design, is $190 per unit. The total cost of downstream activities, such as distribution, marketing, and customer service, is $310 per unit. Compute the full product cost per unit, including upstream, manufacturing, and downstream activities. Also compute the relative proportion of each main cost category.