Sales past 7 days according to https://gladiator.tf/sales?item=Taunt:%20Conga&at=2024-08-02T11:15:56.867Zhttps://gladiator.tf/sales?item=Taunt%3A+Conga :

1 @ 2 keys 48 ref

1 @ 3 keys 2.05 ref

1 @ 3 keys 5 ref

1 @ 3 keys 5.11 ref

1 @ 3 keys 5.22 ref

2 @ 3 keys 5.55 ref

1 @ 3 keys 6.11 ref

6 @ 3 keys 6.88 ref

1 @ 3 keys 7.11 ref

1 @ 3 keys 7.33 ref

1 @ 3 keys 7.88 ref

2 @ 3 keys 8 ref

1 @ 3 keys 10.33 ref

1 @ 3 keys 11.55 ref

2 @ 3 keys 12.66 ref

4 @ 3 keys 12.88 ref

4 @ 3 keys 13 ref

1 @ 3 keys 13.11 ref

2 @ 3 keys 13.22 ref

1 @ 3 keys 13.33 ref

1 @ 3 keys 13.44 ref

2 @ 3 keys 13.61 ref

1 @ 3 keys 13.66 ref

8 @ 3 keys 13.77 ref

2 @ 3 keys 13.88 ref

4 @ 3 keys 14 ref

1 @ 3 keys 14.11 ref

1 @ 3 keys 14.44 ref

2 @ 3 keys 14.55 ref

5 @ 3 keys 14.77 ref

11 @ 3 keys 14.88 ref

8 @ 3 keys 15 ref

2 @ 3 keys 15.44 ref

1 @ 3 keys 15.55 ref

3 @ 3 keys 15.66 ref

1 @ 3 keys 16.11 ref

1 @ 3 keys 16.22 ref

1 @ 3 keys 16.33 ref

1 @ 3 keys 17.22 ref

1 @ 3 keys 17.33 ref

1 @ 3 keys 17.44 ref

This gives a median of 3 keys 13.93 ref (3.29 keys) and an average of 3 keys 12.93 ref (3.28 keys).

Since there are quite a lot of outliers: taking the median: 3.29 keys --> 3.3 keys

(hope this is ok for my first (non-idiotic) suggestion)