12 Months Old Price

Sale 1:

Sold with Sweets (0.25*0.9) for Terror-Watt Tartan Spartan* (22*0.9)

X + 0.23 = 19.8 Keys

X = 19.57 (rounding to 20 Keys)

Before - http://backpack.tf/profiles/76561198062192079?time=1433746800 (June 8th)

After - http://backpack.tf/profiles/76561198062192079?time=1433833200 (June 9th)

http://backpack.tf/profiles/76561198062192079?time=1433746800&compare=1433833200

Outpost - http://www.tf2outpost.com/trade/26156536

*Mini for the Terror-Watt Tartan Spartan

http://www.tf2outpost.com/trade/26232603 ~ Seller at 22 Keys (1 week)

Sale 2:

Sold with Strange Festive Knife (10*0.9) + Sweets (2*0.9) for Specialized Australium Sniper Rifle (~33 Keys) + Sweets (0.78*0.9)

X + 10.8 = 33.7 Keys

X = 22.9 Keys (rounding to 23 Keys)

Before - http://backpack.tf/profiles/76561198030750030?time=1433574000 (June 6th)

After - http://backpack.tf/profiles/76561198030750030?time=1433746800 (June 8th)

http://backpack.tf/profiles/76561198030750030?time=1433574000&compare=1433746800

Outpost - http://www.tf2outpost.com/trade/26135827

Sale 3:

Sold for Disco Beat Down Buckaroos Hat* (13.5) + Strange Construction PDA (7.15*0.9) + Sweets (2.5*0.9)

X = 13.5 + 6.44 + 2.25

X = 22.19 (rounding to 22 Keys)

Before - http://backpack.tf/profiles/76561198101385763?time=1430118000 (April 27th)

After - http://backpack.tf/profiles/76561198101385763?time=1430550000 (May 2nd)

http://backpack.tf/profiles/76561198101385763?time=1430118000&compare=1430550000

*Mini for the Disco Beat Down Buckaroos Hat

Sold for Terror-Watt Brain Bucket (15*0.9) = 13.5 Keys

Before - http://backpack.tf/profiles/76561198118442028?time=1434783600 (June 20th)

After - http://backpack.tf/profiles/76561198118442028?time=1434870000 (June 21st)

http://backpack.tf/profiles/76561198118442028?time=1434783600&compare=1434870000

Sale 4:

Sold for Blizzardy Storm Your Worst Nightmare (22.5*0.9) = 20.25 Keys (rounding to 20 Keys)

Before - http://backpack.tf/profiles/76561198119634882?time=1428735600 (April 11th)

After - http://backpack.tf/profiles/76561198119634882?time=1428822000 (April 12th)

http://backpack.tf/profiles/76561198119634882?time=1428735600&compare=1428822000

Conclusion:

4 valid sales at 20, 23, 22 and 20 Keys. Taking a range of 20-23 Keys.

All feedbacks are welcome.