This is par for the course for Comcast subscribers, who also haven't been able to watch HBO Go on the Playstation 3 since that app arrived a year ago. Comcast doesn't support HBO Go on Amazon's Fire TV devices either, and only started working with Roku last Decemberâmore than three years after the app became available.his is par for the course for Comcast subscribers, who also haven't been able to watch HBO Go on the Playstation 3 since that app arrived a year ago. Comcast doesn't support HBO Go on Amazon's Fire TV devices either, and only started working with Roku last Decemberâmore than three years after the app became available.
Weighted average calculation. The weighted average (x) is equal to the sum of the product of the weight (wi) times the data number (xi) divided by the sum of the weights: Example. Find the weighted average of class grades (with equal weight) 70,70,80,80,80,90: Since the weight of all grades are equal, we can calculate these grades with simple average or we can cound how many times each grade apear and use weighted average. 2Ã70,3Ã80,1Ã90.
Now we can calculate the cost of the sale by taking the average cost per unit multiplied by the number of units sold. Next, calculate the value of the remaining units. There are 125 units left. We will assign $8.03 per unit because that is the weighted average cost of those units on January 7.We will use this figure in the calculation for January 17.erpetual inventory systems require cost of goods sold to be calculated each time there is a sale. Therefore, at the time of each sale, we must calculate the weighted average cost of the units on hand at the time of the sale. On January 7, the company sold 100 units.