Exercise $7-$ Compute the cost of quality: Rehab Health Care incurred the following service$-$related activity costs for the month July $2021($in million ID$)$: Total sales ID $42,000$; Customer complaint processing ID $1,200$; Employee training ID $400$; Reinspection and retesting ID $500$; Design review of service procedures ID $300$; Technical support ID $200$; Investigation of service defects ID $800$; Sample testing of vendors ID $100$; Inspection of supplies ID $150$; Quality audits ID $250$; Quality$-$related downtime ID $300.$

Required:

$1-$ Compute the costs of quality; prevention costs, appraisal costs, internal failure costs and external failure costs.

$2-$ Compute the percentage of sales represented by prevention costs, appraisal costs, internal failure costs, external failure costs, and total costs of quality.