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:

		Last Year			This Year
Prevention costs		$	349,900		$	617,500
Appraisal costs		$	449,500		$	523,200
Internal failure costs		$	805,800		$	520,000
External failure costs		$	1,111,000		$	673,200

1. Calculate the total cost of quality last year and this year.

2. For last year, calculate the cost in each of the four categories as a percent of the total cost of quality. (Round your percentage answers to 1 decimal place.)

3. For this year, calculate the cost in each of the four categories as a percent of the total cost of quality. (Round your percentage answers to 1 decimal place.)

4a. Calculate the change in total cost of quality over the two-year period.