Resuggestion of https://backpack.tf/suggestion/5b3b65a7cf6c7510650d9a9f

Taunt dropping... Hit me, baby, one more time ♪♫

New price: 7.5 keys

Proof:

Sale #1 (1 month)= 7.5

https://marketplace.tf/items/1117;5;u3013

Sold for 15 $. Keys were 1.97$. 15 / 1.97 = ~7.5 keys

Sale #2 (1 month)= 7.5

https://backpack.tf/profiles/76561198018333134#!/compare/1526342400/1526428800

Sold for 7 keys 24 ref. Rounding to 7.5.

Sale #3 (2 months)= 7.5

https://backpack.tf/profiles/76561198001229964#!/compare/1525564800/1525651200

Sold for 7 keys + ~0.5 keys sweets = 7.5 keys.

bot.tf sales:

https://bot.tf/stats/item?def=1117&q=5&ef=Hellish+Inferno&craft=1&aus=0&ks=0

https://imgur.com/a/hwxRPnR

https://backpack.tf/profiles/76561198305676157#!/compare/1526940000/1527026400 - 7 keys 25 ref

https://backpack.tf/profiles/76561198305676157#!/compare/1526767200/1526853600 - 7 keys 25 ref

2 sales at ~7.5 keys

_________________________________________________________

SUMMARY

Sales:

7.5 x5

Going with 7.5 keys flat.

Feel free to add proof to support or counter my new price.