Needs a drop.

Sold for a Power Surge Bubble Pipe(22 Keys with Overpay) and 3 Keys(25 Keys total)

http://backpack.tf/profiles/76561198083559832?time=1426062484 -> http://backpack.tf/profiles/76561198083559832?time=1426402800

Sold for a Disco Beat Down Birdcage(14 Keys with Overpay) and 12 Keys(26 Keys total)

http://backpack.tf/profiles/76561198005188974?time=1427312113 -> http://backpack.tf/profiles/76561198005188974?time=1427353200

Sold for a Green Energy Helmet Without A Home(25 Keys with Overpay)

http://backpack.tf/profiles/76561198118496274?time=1427410706 -> http://backpack.tf/profiles/76561198118496274?time=1428044400

Added 4 Keys for a Cloud 9 L'Homme Burglerre(30 Keys, Offered)(26 Keys total)

http://backpack.tf/profiles/76561198085469340?time=1425266230 -> http://backpack.tf/profiles/76561198085469340?time=1425283200

http://backpack.tf/profiles/76561197974886757?time=1425196800 -> http://backpack.tf/profiles/76561197974886757?time=1425283200

http://www.tf2outpost.com/trade/25237519

Sold for an Ooze Hetman's Headpiece(29 Keys with Overpay, Outlier)

http://backpack.tf/profiles/76561198026509644?time=1423900800 -> http://backpack.tf/profiles/76561198026509644?time=1423987200

Sold for a Circling Peace Sign Triboniophorus Tyrannus(21 Keys, offered)

http://backpack.tf/profiles/76561198031285313?time=1426402800 -> http://backpack.tf/profiles/76561198031285313?time=1426575600

http://www.tf2outpost.com/trade/25241798

Sold with 1 Bud(8 Keys at the time) for a Max's Severed Head(28.5 Keys at the time)(20.5 Keys total, rounding to 21)

http://backpack.tf/profiles/76561198061420228?time=1427772992 -> http://backpack.tf/profiles/76561198061420228?time=1427785200

Sold for an Australium Pro KS Ambassador(19 Keys with Overpay, Outlier)

http://backpack.tf/profiles/76561198052664770?time=1425884400 -> http://backpack.tf/profiles/76561198052664770?time=1426402800

Australium Pro KS Ambassador mini suggestion

All recent sales on the SCM(Keys = $2.49): http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Ambassador

$46.27

$50.47

$50.22

$50.22

$64.35

$51.37

$50.01

$58.47

$58.65

$58.73

$58.99

$51.84

$52.15

$52.35

$50.94

$55.00

$36.62

$48.50

$46.00

$51.59

$50.89

$57.50

$48.25

$50.00

$54.47

$75.00

$63.25

$39.99

$50.70

$68.36

$54.19

$42.39

$55.00

$48.30

$52.05

$53.97

$55.22

$53.31

$51.91

$57.50

$77.00

$81.37

$55.00

$60.02

$66.77

$56.92

$57.00

$52.90

$57.51

$53.84

$85.01

$55.48

$60.10

$61.73

$54.01

The average comes out at $55.63(Roughly 22 Keys)

http://www.tf2outpost.com/trade/25864905 5 Day unsold at 20 Keys

Using 20-22.

Sales at 19, 21, 21, 25, 25, 26, 26 and 29. Cutting off 19 and 29, 21-26 should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.