I think.

Ha! I made a suggestion that starts with i think. Massive downvotes incoming.

Sales

1) Sold for a Circling Heart Human Cannonball (95) + 15 keys.

http://backpack.tf/profiles/76561198031012931?time=1436770800 (July 13th vs 20th)

http://backpack.tf/profiles/76561198061836787?time=1436770800 (July 13th vs 14th)

Was used to update the Cannonball... but the suggester missed 15 keys apparently.

http://backpack.tf/vote/id/55d06351b98d88a2728b45b9

I'm using the other sale as a mini (103 keys)

====> 103*0.9 + 15 = ~108 keys

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2) Sold with a Cauldron Bubbles Prince Tavish's Crown (26) + Bubbling Exquisite Rack (28) + Bubbling Specialized Killstreak Team Captain (?) for a duped H.O.U.W.A.R. (?)

http://backpack.tf/profiles/76561198031012931?time=1438326000 (July 31st vs Aug 1st)

This seems like an outlier. TC will be around 40 keys, HOUWAR somewhere between 100-125. The Pullover would end up somewhere around 20-40 keys.

====> Not using

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3) Sold for a Strange PKS Australium Rocket Launcher (?) + Orbiting Fire Desert Marauder (?)

http://backpack.tf/profiles/76561198115854061?time=1440313200 (Aug 23rd vs 25th)

http://www.tf2outpost.com/trade/26851281 --- B/O was 94 keys

Mini on Aussie RL: Around Aug. 20th-26th: 182.91*3 179 175 185.31*3 = $182.33/$2.45 = 65-74 keys ====> 69 keys

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Rocket%20Launcher

Mini on DM: Sold for Dead Presidents Harmburg (25 keys*) ====> 25*0.9 = 23 keys

http://backpack.tf/profiles/76561198110993295?time=1436598000 (July 11th vs 15th)

*The Harmburg was priced at 25 keys on June, and the sale happened on July. The recent suggestion at 20 keys (made by me) was approved on September, so i'm taking 25.

Back to the main sale: 69 + 23 = 92 keys

Didn't apply overpay on the RL as it sells pretty quickly on SCM.

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4) Sold with 15 keys for a Time Warp Festive Tree --------- was used to price the Tree

http://backpack.tf/profiles/76561198070664972?time=1440140400 (Aug. 21st vs 22nd)

====> Not using

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5) Sold with 10 keys for a Disco Beat Down Kiss King (?) ---------- Should be used to update the Kiss King

http://backpack.tf/profiles/76561198086387300?time=1440140400 (Aug 21st vs 22nd)

Outpost trades: http://www.tf2outpost.com/trade/26849101 Pullover

http://www.tf2outpost.com/trade/26758389 Kiss

====> Not using

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6) Sold with something for a duped '72 Taunt: Skullcracker (?)

Pullover buyer: http://backpack.tf/profiles/76561198070664972?time=1439535600 (Aug 14th vs 15th)

Pullover seller: http://backpack.tf/profiles/76561198155219465?time=1439535600

http://www.tf2outpost.com/trade/26736691 B/O of 90 keys

Pullover was offered with a Dead Presidents Hive Minder. At the end the Hive wasn't traded, and i can't confirm what was involved. Pullover buyer's backpack history shows keys with different histories, and Pullover seller's backpack history shows a PF Noir + FN Current Event Scattergun.

====> Not using

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7) Sold for a Chiroptera Venenata Towering Titanium Pillar of Hats (?) ------ used to update the Pillar.

http://backpack.tf/profiles/76561198115854061?time=1440918000 (Aug 30th vs Sep 10th)

====> Not using

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8) Sold for Kill-a-Watt Hong Kong Cone (92.5 keys)

http://backpack.tf/profiles/76561198225863980?time=1441004400 (Aug 31st vs Sep 1st)

http://www.tf2outpost.com/trade/26936091 B/O was 93 keys,

High chance the Pullover was offered on the Cone ====> 93 keys

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9) Sold for 94 keys

http://backpack.tf/profiles/76561198112281935?time=1436511600 (July 10th vs 11th)

http://www.tf2outpost.com/trade/26400218 B/O was deleted, doesn't seem like a quicksale.

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10) Quicksold for 83 keys + B.M.O.C. ====> ~87 keys

http://backpack.tf/profiles/76561197981470362?time=1436252400 (July 7th vs 8th)

http://www.tf2outpost.com/trade/26358885 B/O was 96 keys, but it took ~ 3 days.

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There is a young seller for 82 keys right now http://www.tf2outpost.com/trade/27120798 2 days. I can't use it yet, so i didn't include it. Plus i have a quicksale at 87 keys, which is a bit old, but supports the range i will take.

Summary

- Sales at 108, 92, 93, 94.

- 108 looks like an outlier, even if it's close to the other sales, so i will be taking 92-94 keys range, a refresh.

I might have missed sales as i couldn't find all Pullovers, but the proof seems solid.

Criticism is appreciated, as always.