Sale One: $30 on mp

https://marketplace.tf/items/31024;5;u58

Keys were $1.75 that day:

https://marketplace.tf/items/5021;6/Mann%20Co.%20Supply%20Crate%20Key

30/1.75=17.14, rounding to 17

Sale Two: $28.76 on scm, Jan 30th

https://steamcommunity.com/market/listings/440/Unusual%20Crack%20Pot

Compare link showing the buyer receiving the item:

https://backpack.tf/profiles/76561198047554135#!/compare/1548028800/1548806400

Item left seller’s inv on Jan 25. Compare link for buyer inv shows that he obtained the pot between Jan 21 to 30, so it must have been between Jan 25 to 30. Buyer told me that he bought the crack pot for ~$30:

https://imgur.com/a/BPD5Lqg

$28.76 is the only value close to $30 between Jan 25 and 30 on scm.

Key prices were $2.22 the day the pot was sold (using that value since the most keys were sold at that price that day)

https://imgur.com/a/YtzpP5B

28.76/2.22=12.95, rounding to 13

_Total sales at 17 and 13_