May I please get assistance with this problem. I was able to solve all the problem up until # 3 can you please assist.

Exercise 12-8 (Static) Cost of Quality [LO12-2] 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: Required: 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. 3. For this year, calculate the cost in each of the four categories as a percent of the total cost of quality. 4-a. Calculate the change in total cost of quality over the two-year period. 4-b. Is performance trending in a favorable or unfavorable direction