Walton Company has measured its quality costs for the past two years. After the company gathers its quality cost data, it summarizes those costs using the four categories shown below: Prevention costs Appraisal coste Internal failure costs External failure costs Last Year This Year $. 357.000 $ 650,000 $445,000 $ 545.000 $ 790,000 $ 500.000 $1.100.000 $ 680.000 4-a. Calculate the change in total cost of quality over the two-year period Prevention and appraisal activities Internal and external failure costs The total cost of quality Increased Decreased