Gladiator.tf:

1st month: https://gladiator.tf/sales?item=%2772%20Taunt:%20Zoomin%27%20Broom&at=2021-12-26T23:26:11.841Z

Sales:

1 @ 6 keys 68 ref ~7 keys

Buys:

1 @ 6 keys 51.33 ref ~7 keys

2nd month: https://gladiator.tf/sales?item=%2772%20Taunt:%20Zoomin%27%20Broom&at=2021-11-26T23:26:11.841Z

Buys:

1 @ 7 keys 4 ref ~7 keys

3rd month: https://gladiator.tf/sales?item=%2772%20Taunt:%20Zoomin%27%20Broom&at=2021-10-26T23:26:11.841Z

Sales:

1 @ 7 keys 39 ref ~7.5 keys

Buys:

1 @ 6 keys 50.88 ref ~7 keys

~~

https://marketplace.tf/items/tf2/30672;5;u3004

$13.69 / $1.83 = 7.48 keys ~7.5 keys (x2)

$13.99 / $1.85 = 7.56 keys ~7.5 keys

$13.99 / $1.87 = 7.48 keys ~7.5 keys

$15.99 / $1.87 = 8.55 keys ~8.5 keys

~~

https://mannco.store/item/440-72-unusual-taunt-zoomin-broom nothing

https://gladiator.tf/listings/61c8dafcda39f80e18972009 2 sellers at 7.36 keys (which would round to 7.5), other seller at 8 for 23 days. Buyers at 6.65 keys

Sales at 7 (x4), 7.5 (x5), 8.5

8.5 is an outlier here, taking 7-7.5 keys