pls.

sale 1: sold with v.specialized ks luger[8 keys via mini] for ge tyrants[105 keys]

http://backpack.tf/profiles/76561198001771869?time=1433142000

http://backpack.tf/profiles/76561198001771869?time=1433314800

front runner was offered, so no overpay: http://www.tf2outpost.com/trade/26071819

105-8=97

rounding up to 100.

mini on luger: http://gyazo.com/dbcfb249559148a173b298a20718c29e

rounding to 8 keys.

sale 2: sold with 2 keys for s.professional ks festive medi gun[42 keys via mini]+s.professional ks festive ubersaw[6 keys via mini]+strange voodoo[40 keys]

http://backpack.tf/profiles/76561198083312367?time=1430982000

http://backpack.tf/profiles/76561198083312367?time=1431068400

42*0.9=37.8 rounding to 38

40*0.9=36

6*0.9=5.4 rounding to 5

38+36+5=79

79-2=77 rounding to 80

mini on medigun: http://gyazo.com/6a954b56202893b5d6f9ab09b0458e5b

rounding to 42 keys.

mini on ubersaw: http://gyazo.com/29f004241e0ea90b0dcae6d807f23419

rounding to 6 keys.

sale 3: sold for RA armored authority[77 keys via mini]

http://backpack.tf/profiles/76561198083312367?time=1432623600

http://backpack.tf/profiles/76561198083312367?time=1432710000

rounding to 80

mini on authority: sold with 2 keys for beams fuka[79 keys via mini]

http://backpack.tf/profiles/76561198106318531?time=1431673200

http://backpack.tf/profiles/76561198106318531?time=1431759600

79-2=77

mini on fuka: sold with 8 keys for secret to everybody armored authority[97 keys]

http://backpack.tf/profiles/76561198106318531?time=1432278000

http://backpack.tf/profiles/76561198106318531?time=1432364400

97*0.9=87.3 rounding to 87

87-8=79

taking a final price of 80-100 keys.