Can someone please help me with these four problems? I am so lost on the traditional product costing and activity based costing methods.

Exercise 4-10 Kragan Clothing Company manufactures its own designed and labeled athletic wear and sells its products through catalog sales and retail outlets. While Kragan has for years used activity-based costing in its manufacturing activities, it has always used traditional costing in assigning its selling costs to its product lines. Selling costs have traditionally been assigned to Kragan's product lines at a rate of 70% of direct materials costs. Its direct materials costs for the month of March for Kragan's \"high-intensity\" line of athletic wear are $405,000. The company has decided to extend activity-based costing to its selling costs. Data relating to the \"high-intensity\" line of products for the month of March are as follows. Activity Cost Pools Sales commissions AdvertisingTV AdvertisingInternet Catalogs Cost of catalog sales Credit and collection Overhead Rate Cost Drivers Dollar sales Minutes Column inches Catalogs mailed Catalog orders Dollar sales $0.05 $300 $10 $2.50 $1 $0.03 per per per per per per Number of Cost Drivers Used per Activity dollar sales minute column inch catalog catalog order dollar sales $927,000 200 2,200 62,100 9,050 927,000 Compute the selling costs to be assigned to the \"high-intensity\" line of athletic wear for the month of March (1) using the traditional product costing system (direct materials cost is the cost driver), and (2) using activity-based costing. Traditional product costing Selling cost to be assigned Activity-based costing $ $ By what amount does the traditional product costing system undercost or overcost the \"high-intensity\" product line? $ Exercise 4-11 Health 'R Us, Inc., uses a traditional product costing system to assign overhead costs uniformly to all its packaged multigrain products. To meet Food and Drug Administration requirements and to assure its customers of safe, sanitary, and nutritious food, Health 'R Us engages in a high level of quality control. Health 'R Us assigns its quality-control overhead costs to all products at a rate of 17% of direct labor costs. Its direct labor cost for the month of June for its low-calorie breakfast line is $73,500. In response to repeated requests from its financial vice president, Health 'R Us's management agrees to adopt activity-based costing. Data relating to the low-calorie breakfast line for the month of June are as follows. Activity Cost Pools Inspections of material received In-process inspections FDA certification Cost Drivers Number of pounds Number of servings Customer orders Overhead Rate Number of Cost Drivers Used per Activity $0.90 per pound 6,000 pounds per serving $12.00 per order $0.33 10,500 servings 420 orders Compute the quality-control overhead cost to be assigned to the low-calorie breakfast product line for the month of June (1) using the traditional product costing system (direct labor cost is the cost driver), and (2) using activity-based costing. Traditional product costing Quality-control overhead cost to be assigned Activity-based costing $ $ By what amount does the traditional product costing system undercost or overcost the low-calorie breakfast line? $ Problem 4-3A Shaker Stairs Co. designs and builds factory-made premium wooden stairways for homes. The manufactured stairway components (spindles, risers, hangers, hand rails) permit installation of stairways of varying lengths and widths. All are of white oak wood. Budgeted manufacturing overhead costs for the year 2017 are as follows. Overhead Cost Pools Amount Purchasing Handling materials Production (cutting, milling, finishing) Setting up machines Inspecting Inventory control (raw materials and finished goods) Utilities Total budgeted overhead costs $75,000 82,800 221,000 101,250 114,000 141,120 360,000 $1,095,170 For the last 4 years, Shaker Stairs Co. has been charging overhead to products on the basis of machine hours. For the year 2017, 100,000 machine hours are budgeted. Jeremy Nolan, owner-manager of Shaker Stairs Co., recently directed his accountant, Bill Seagren, to implement the activity-based costing system that he has repeatedly proposed. At Jeremy Nolan's request, Bill and the production foreman identify the following cost drivers and their usage for the previously budgeted overhead cost pools. Activity Cost Pools Cost Drivers Purchasing Handling materials Production (cutting, milling, finishing) Setting up machines Inspecting Inventory control (raw materials and finished goods) Utilities Number of orders Number of moves Direct labor hours Number of setups Number of inspections Number of components Square feet occupied Expected Use of Cost Drivers 600 8,000 100,000 1,250 6,000 168,000 90,000 Steve Hannon, sales manager, has received an order for 250 stairways from Community Builders, Inc., a large housing development contractor. At Steve's request, Bill prepares cost estimates for producing components for 250 stairways so Steve can submit a contract price per stairway to Community Builders. He accumulates the following data for the production of 250 stairways. Direct materials $104,000 Direct labor Machine hours Direct labor hours Number of purchase orders Number of material moves Number of machine setups Number of inspections Number of components Number of square feet occupied $112,800 15,000 5,100 60 800 100 450 16,000 8,000 Compute the predetermined overhead rate using traditional costing with machine hours as the basis. (Round answer to 2 decimal places, e.g. 12.25.) $ Predetermined overhead rate per machine hour What is the manufacturing cost per stairway under traditional costing? (Round answer to 2 decimal places, e.g. 12.25.) $ Cost per stairway Calculate activity-based overhead rate for each activity. (Round answers to 2 decimal places, e.g. 12.25.) Activity Purchasing Handling materials Overhead Rate $ per order $ per move $ Production per D/L hour $ Setting up machines per setup $ Inspecting per inspection $ Inventory control per component $ Utilities per sq. ft. Calculate total overhead assigned under ABC. $ Total overhead assigned What is the manufacturing cost per stairway under the proposed activity-based costing? (Round answer to 2 decimal places, e.g. 12.25.) $ Total cost per stairway Problem 4-4A Benton Corporation produces two grades of non-alcoholic wine from grapes that it buys from California growers. It produces and sells roughly 3,000,000 liters per year of a low-cost, high-volume product called CoolDay. It sells this in 600,000 5-liter jugs. Benton also produces and sells roughly 300,000 liters per year of a low-volume, high-cost product called LiteMist. LiteMist is sold in 1-liter bottles. Based on recent data, the CoolDay product has not been as profitable as LiteMist. Management is considering dropping the inexpensive CoolDay line so it can focus more attention on the LiteMist product. The LiteMist product already demands considerably more attention than the CoolDay line. Jack Eller, president and founder of Benton, is skeptical about this idea. He points out that for many decades the company produced only the CoolDay line and that it was always quite profitable. It wasn't until the company started producing the more complicated LiteMist wine that the profitability of CoolDay declined. Prior to the introduction of LiteMist, the company had basic equipment, simple growing and production procedures, and virtually no need for quality control. Because LiteMist is bottled in 1-liter bottles, it requires considerably more time and effort, both to bottle and to label and box than does CoolDay. The company must bottle and handle 5 times as many bottles of LiteMist to sell the same quantity as CoolDay. CoolDay requires 1 month of aging; LiteMist requires 1 year. CoolDay requires cleaning and inspection of equipment every 10,000 liters; LiteMist requires such maintenance every 600 liters. Jack has asked the accounting department to prepare an analysis of the cost per liter using the traditional costing approach and using activity-based costing. The following information was collected. CoolDay Direct materials per liter Direct labor cost per liter Direct labor hours per liter Total direct labor hours $0.40 $0.50 0.05 150,000 LiteMist $1.20 $0.90 0.07 21,000 Expected Use of Cost Drivers per Product Activity Cost Pools Grape processing Aging Bottling and corking Labeling and boxing Maintain and inspect equipment Cost Drivers Cart of grapes Total months Number of bottles Number of bottles Number of inspections Estimated Overhead $146,751 699,600 296,100 243,000 244,000 $1,629,451 Answer each of the following questions. Expected Use of Cost Drivers 6,600 6,600,000 900,000 900,000 800 CoolDay LiteMist 6,000 3,000,000 600,000 600,000 350 600 3,600,000 300,000 300,000 450 Under traditional product costing using direct labor hours, compute the total manufacturing cost per liter of both products. (Round answers to 3 decimal places, e.g. 12.250.) CoolDay LiteMist $ $ Manufacturing cost per liter Under ABC, prepare a schedule showing the computation of the activity-based overhead rates. (Round overhead rates to 3 decimal places, e.g. 12.250.) Activity Cost Pools Estimated Overhead $ Expected Use of Cost Drivers Activity-Based Overhead Rates $ Grape processing per cart $ Aging per month $ Bottling and corking per bottle $ Labeling and boxing per bottle $ Maintain and inspect equipment per inspection $ Prepare a schedule assigning each activity's overhead cost pool to each product, based on the use of cost drivers. Include a computation of overhead cost per liter. (Round overhead rate, cost per liter to 3 decimal places, e.g. 12.250 and cost assigned to 0 decimal places, e.g. 12,250.) CoolDay Activity Cost Pool Expected Use of Cost Drivers ListMist Activity-Based Overhead Rates $ Grape processing Aging Bottling and corking Labeling and boxing Maintain and inspect equipment Total costs assigned Expected Use of Cost Drivers Cost Assigned $ Activity-Based Overhead Rates Cost Assigned $ $ $ $ $ $ $ $ $ $ $ $ $ $ Liters produced Overhead cost per liter Compute the total manufacturing cost per liter for both products under ABC. (Round overhead cost per liter to 3 decimal places, e.g. 1.225.) CoolDay Manufacturing cost per liter LiteMist $ $