Carpentaria Language School Produces CDs and DVDs to Teach English

Carpentaria Language School produces CDs and DVDs to teach English as a Second Language to new migrants.Carpentaria has just prepared a Cost of Quality Report which shows a decline in prevention costs as a percentage of total sales over a three-year period.What changes might Carpentaria expect to see in
(i)appraisal costs as a percentage of sales,
(ii)internal failure costs as a percentage of sales,and
(iii)external failure costs as a percentage of sales
given this trend?
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