Gudafild wrote:
How does this work?
It's weighted mean, where the weights are:
1,
0.95,
0.95^2,
0.95^3,
...
0.95^{N-1},
for N being number of your scores and 0.95^x is
exponentiation.
Theoretically it works like this: all score values are sorted (descending from the highest one to the lowest one), then they are multiplied by their weights and divided by the sum of weights. We are assuming here that aside of your achieved scores, you also have infinitely many scores that are equal to 0.
In this case, sum of weights is 20, so we can simply say that N-th score is takes as:
(value*0.95^{N-1})/20. You sum up these for all your scores and you have your total skill (✿◠‿◠)
For a little insight about how the first scores impact the total value, check this, it can be useful:
p/5306937Edit: In your case, you have just a few of the highest scores, which are not enough to overweight the rest. The first top six scores, even though they are much higher than the rest, have a total sum of weights ~26.5%, and give you a total of about ~185.42 Agility, so the total score depends mostly on the lower ones. We can say that not having enough of such high Agility scores drags you down a little.
If all your lower scores were higher, for example like this 601 one, your Agility would be much higher and equal to about 627.