To provide clarity and insight to how the new average ratings metric is calculated we're breaking down an example of Apple ratings.

Google does not support new ratings as Apple does so this count breakdown is Apple specific, therefore Average New Ratings is an Apple specific metric.

iOS app store ratings:

1.

⭐ = 20

⭐⭐ = 15  

⭐⭐⭐ = 25

⭐⭐⭐⭐ = 39

⭐⭐⭐⭐⭐ = 51

Add up all star counts for the full number of available ratings.

star count = 20 + 15 + 25 + 39 + 15 = 150

We'll come back to the total star count in a bit.

2.

1 x 20 = 20 

2 x 15 = 30 

3 x 25 = 75 

4 x 39 = 156

5 x 51 = 255

Now we'll sum each multiplied row:

20 + 30 + 75 + 156 + 255 = 536

Lastly, divide the the total in #2 by the total in #1.

536 / 150 = 3.57

Average new rating = 3.57