Keith Construction Inc., a five-year-old business, provides contracting and construction services to a variety of clients. Given that each construction job is different from any other, company accountant Susan Kalagnanam decided that it was best to use a job-order costing system to allocate costs to the different jobs. She decided to use construction labour hours as the basis for overhead allocation. In December 2022, she estimated the following amounts for the year 2023: Direct materials $ 13,686,400 Construction labour 8,460,000 Overhead 9,452,000 Construction labour hours 470,000 Kalagnanam recorded the following for the first quarter of 2023 for the three jobs that the company started and completed during the quarter: School Residential Cinema Direct materials $ 769,750 $ 923,700 $ 1,385,550 Construction labour hours 63,450 37,600 16,400 Required: 1. Compute the cost of each job using the current system of cost allocation. (Round intermediate calculations to 2 decimal places.) 2. Tyler Case, the companys CEO, recently returned from a seminar on activity-based costing and instructed Kalagnanam to consider implementing the new system. As a first step, he instructed her to analyze the overhead costs for 2022. Through her research, she was able to derive the following breakdown of the estimated overhead costs for 2022: Activity Amount Activity Measure Activity Volume Foundation laying $ 2,376,000 Foundation-laying hours 396,000 Building construction 2,350,000 Construction labour hours 470,000 Painting 2,470,000 Painting-hours 520,000 Finishing 2,256,000 Finishing-hours 705,000 She also documented the following activity on the three jobs during the first quarter of 2023 (in addition to the construction labour hours consumed by the three jobs): School Residential Cinema Foundation-laying hours 50,690 49,100 58,610 Painting-hours 68,640 42,900 60,060 Finishing-hours 36,660 54,990 91,650 a. Calculate the activity rates for each of the four activities. (Round your answers to 2 decimal places.) b. Calculate the total cost of each job using activity-based costing. (Do not round intermediate calculations and round your final answers nearest to whole number.)