Answer and Explanation:
The computation is shown below:
1 
 The calculation of the Expected selling price in the fourth year is 
Expected Selling Price in year 1 $15,250 
 Expected Annual Growth rate is 3% 
So, 
Expected Selling Price in year 4 = 15250 × (1+3%)^3 
 = $16,664 
 2 
 The Calculation of Expected Cost per unit in the fourth year is 
 Expected Selling Price in year 1 = $6,700 
 Expected Annual Growth rate = 3% 
So, 
Expected Selling Price in year 4 = 6700 × (1+3%)^3 
 = $7,321 
 3 
 Inflation’s effect on net present value (NPV): 
In the case when the selling price and the cost per unit rises at the similar rate so it is forgot to considered the inflation this will result in NPV that should be lower than the true NPV