The Controller for Rich Photographic Supply Has Established the Following

The controller for Rich Photographic Supply has established the following cost pools and cost drivers:

An order for 1,200 boxes of film-development chemicals has the following production requirements:

Rich established a target price by adding a 40% markup to total manufacturing cost.
Required:
A. Determine the order's target price by using the activity-cost pools.
B. Assume that Rich used a single, combined overhead rate based on weight of raw materials.
1. Determine the predetermined overhead rate.
2. Determine the expected cost of the order.
3. Determine the target price.
C. Which approach above ("A" or "B") seems to be a more reasonable method to establish target prices? Explain.