Farris \& Company is an architectural firm specializing in home remodeling for private clients and new office buildings for corporate clients. Farris charges customers at a billing rate equal to 140% of the client's total job cost. A client's total job cost is a combination of (1) professional time spent on the client (\$69 per hour cost of employing each professional) and (2) operating overhead allocated to the client's job. Farris allocates operating overhead to jobs based on professional hours spent on the job. Farris tes its five professionals will incur a total of 10,000 professional hours working on client jobs during the year. : (Click the icon to view the operating cost information.) Ann Lawson hired Farris to design her kitchen remodeling. A total of 25 professional hours were incurred on this job. In addition, Lawson's remodeling job required one of the professionals to travel back and forth to her house for a total of 140 miles. The blueprints had to be copied four times because Lawson changed the plans several times. Read the requirements. Requirement 1. Calculate the current indirect cost allocation rate per professional hour. (Round your answer to the nearest cent.) The current indirect cost allocation rate per professional hour is Requirement 2. Calculate the total amount that would be billed to Lawson given the current costing structure. Determine the formula, then calculate the amount that would be billed to Lawson given the current costing structure. (Round all amounts to the nearest cent.) Requirement 3. Calculate the activity cost allocation rates that could be used to allocate operating overhead costs to client jobs. Determine the formula, then calculate the activity cost allocation rates that could be used to allocate operating overhead costs to client jobs. (Round the rates to the nearest cent.) Requirement 4. Calculate the amount that would be billed to Lawson using ABC costing. Determine the formula, then calculate the amount that would be billed to Lawson using ABC costing. (Round all amounts to the nearest cent.) =Amountbilledtoclient= Requirement 5. Which type of billing system is more fair to clients? Explain