Month 1 https://gladiator.tf/sales?item=Midnight%20Whirlwind%20Taunt:%20Yeti%20Punch&at=2022-04-29T22:03:25.192Z

1 @ 3 keys 6.77 ref

1 @ 3 keys 9.33 ref

2 @ 3 keys 10.44 ref

1 @ 3 keys 10.88 ref

1 @ 3 keys 14.55 ref

3 @ 3 keys 15.22 ref

1 @ 3 keys 20.33 ref

Month 2 https://gladiator.tf/sales?item=Midnight%20Whirlwind%20Taunt:%20Yeti%20Punch&at=2022-03-29T22:03:25.192Z

1 @ 3 keys 45 ref

Month 3 https://gladiator.tf/sales?item=Midnight%20Whirlwind%20Taunt:%20Yeti%20Punch&at=2022-02-29T22:03:25.192Z

1 @ 3 keys 16 ref

1 @ 3 keys 16.11 ref

1 @ 3 keys 21.33 ref

1 @ 3 keys 35 ref

https://marketplace.tf/items/tf2/1182;5;u3008

$7.17 / $1.74 = 4.12 keys

https://mannco.store/item/440-midnight-whirlwind-unusual-taunt-yeti-punch

$6.99 / $1.61 = 4.34 keys

https://backpack.tf/item/9397735974

https://gladiator.tf/listings/62341c48c9963f3724ca5e5c

~3.3 keys

https://gladiator.tf/listings/6269a3d5b15d17df20d7edc2

8 month unsold at 4

3.1-3.65 keys.