Mack's gutar fabrication shop produces low cost, highly durable guitars for beginners Typically, out of the 100 guitars that begin production each month, only 82 percent are considered good enough to sell The other 18 percent are scrapped due to quality problems that are identified after they have completed the production process. Each guitar sells for $200 Because some of the production process is automated each guitar only requires 12 labor hours. Each employee works an average of 100 hours per month Labor is paid at $10 per hour matenals cost is 542 per guitar, and overheads $4,000 a. The labor productivity ratio for Mack's guitar fabrication shop is 5 17 77 per hour. (Enter your response rounded to two decimal places) The multifactor productivity ratio for Mack's guitar fabrication shop is (Enter your response rounded to two dicumal places)