https://marketplace.tf/items/tf2/1116;5;u3003

Dec 16 5$ / 1.66 = 3

Dec 17 5.94$ / 1.67 = 3.55

Dec 28 5.94$ / 1.79 = 3.3

Jan 2 5.94$ / 1.77 = 3.35

Jan 17 one at 5.9$ / 1.77 = 3.35 and another at 3.21$ / 1.77 = 1.8

Jan 22 three at 4.9$ / 1.78 = 2.75 and one at 3.22$ / 1.78 = 1.8

Jan 30 5.7$ / 1.76 = 3.25

Feb 10 4$ / 1.78 = 2.25

Feb 14 5.44$ / 1.75 = 3.1

Feb 24 3.35$ / 1.76 = 1.9

Two sellers at around 2.5 keys https://imgur.com/a/RvfL7V3

Total sales: 3, 3.55, 3.3, 3.35 x2, 1.8 x2, 2.75, 3.25, 2.25, 3.1, 1.9

1.9 and 1.8 are below buy orders, two sellers at around 2.5 keys, taking 2.25 to 2.5.