Sale 1:

http://backpack.tf/profiles/76561198221996600#!/compare/1490918400/1491004800

Sold with 30 keys pure for a Showstopper Taunt: Flippin' Awesome (143)

= 113

Mini - Credits Randy

Sold for a Isotope Professional Killstreak Aqua Marine Rocket Launcher (Well-Worn)(73) + Strange Starstorm Slumber Specialized Killstreak Vintage Tyrolean(70) = 143

http://backpack.tf/profiles/76561198062399509#!/compare/1489449600/1489536000

Sale 2: Credits to Randy again

Sold for a Hellish Inferno Taunt: Zoomin' Broom (mini for ~107 Below) = 107 Keys

http://backpack.tf/profiles/76561198221996600#!/compare/1485475200/1485734400

Mini for Broom

Sold for a GE Fortunate Son(100) + 7 Key Sniper = 107

http://backpack.tf/profiles/76561198076370493#!/compare/1490486400/1490572800

Sellers for 120 for a while support the large drop. - http://backpack.tf/classifieds?item=Taunt:%20Zoomin%27%20Broom&quality=5&tradable=1&craftable=1&australium=-1&particle=3013&killstreak_tier=0

Sales:

113

107

Rounding them to the nearest 5.

105 - 115