Challenge 19, Team F.L.A.M.B.E.S!

11th suggestion, made by Mikey!

Marketplace Sales:

https://marketplace.tf/items/tf2/1112;5;u3015

1:

Can't find item history.

Apr 12th - $17.59

Keys were $1.71 that day, so 17.59 / 1.71 = 10.29 keys, rounding to 10.

2:

https://backpack.tf/item/2862680177

Apr 26th - $17.59

Keys were $1.81 that day, so 17.59 / 1.81 = 9.72 keys, rounding to 10.

3:

Can't Find Item History.

May 12th - $13.20 - Quicksell / below buy orders.

4:

https://backpack.tf/item/5264013954

June 3rd - $19.01

Keys were $1.96 that day, so 19.01 / 1.96 = 9.7 keys, rounding to 10.

5:

Cannot Find Item History.

June 14th - $19.01

Keys were $1.99 that day, so 19.01 / 1.99 = 9.55 keys, rounding to 10.

6:

https://backpack.tf/item/6312849986

June 20th - $19.20

Keys were $1.98 that day, so 19.20 / 1.98 = 9.7 keys, rounding to 10.

Other Sales:

7:

https://backpack.tf/profiles/76561198074327591#!/compare/1587772800/1588982400

Untrace / Sold to Scrap.tf bot.

8:

https://backpack.tf/profiles/76561198340634356#!/compare/1588982400/1589068800

https://backpack.tf/profiles/76561198057911246#!/compare/1588809600/1589068800

Sold for 9 keys

9:

https://backpack.tf/profiles/76561198137655140#!/compare/1587859200/1588032000

https://backpack.tf/profiles/76561198867554295#!/compare/1588118400/1588291200

Bulk

10:

https://backpack.tf/profiles/76561198867554295#!/compare/1588550400/1588723200

https://backpack.tf/profiles/76561198987077978#!/compare/1588723200/1592697600

Untrace

11:

https://backpack.tf/profiles/76561198987077978#!/compare/1588723200/1589414400

https://backpack.tf/profiles/76561198876179362#!/compare/1588377600/1588809600

Scammer, disregarding.

12:

https://backpack.tf/profiles/76561198340634356#!/compare/1589241600/1589328000

https://backpack.tf/profiles/76561198242193222#!/compare/1578873600/1589328000

Sold for ~8.49 keys

13:

https://backpack.tf/profiles/76561198311498888#!/compare/1588291200/1588377600

https://backpack.tf/profiles/76561198103644771#!/compare/1587168000/1590192000

Untrace

14:

https://backpack.tf/profiles/76561198103644771#!/compare/1592092800/1592697600

https://backpack.tf/profiles/76561198311498888#!/compare/1592611200/1592697600

Untrace

15:

https://backpack.tf/profiles/76561198996047364#!/compare/1589068800/1589155200

https://backpack.tf/profiles/76561199025023571#!/compare/1589068800/1589155200

Untrace

16:

https://backpack.tf/profiles/76561199025023571#!/compare/1589068800/1589155200

https://backpack.tf/profiles/76561198386195044#!/compare/1588982400/1589155200

Untrace

17:

https://backpack.tf/profiles/76561198386195044#!/compare/1588982400/1589155200

https://backpack.tf/profiles/76561198817887345#!/compare/1590883200/1590969600

Untrace

18:

https://backpack.tf/profiles/76561198817887345#!/compare/1590883200/1590969600

https://backpack.tf/profiles/76561198154700747#!/compare/1590883200/1590969600

Untrace/Unknown

Summary of Sales:

8.5, 9, 9.5, 9.5, 9.5, 9.5, 10 keys

Taking 8.5 - 10 keys