You need to make sure to check all movements. Also I would recommend documenting all sales so it shows there isn't any cherry picking.

Firstly anything above 79 keys is to high as there is several lower and 2 unsold at 79 for over 3 months.

Sales/movements here:

https://backpack.tf/item/16456541497

https://backpack.tf/item/16246252114 - I check this one quickly, look on buyers side rather then sellers as it was traded at least the airstrike, original, Fused Plates and some keys

https://backpack.tf/item/14442593867 - MP sale + bot dump

https://backpack.tf/item/14320214444

https://backpack.tf/item/13863704717

https://backpack.tf/item/13512268815

https://backpack.tf/item/13439615023

https://backpack.tf/item/13370982178

https://backpack.tf/item/13261444750

https://backpack.tf/item/13241482465

https://backpack.tf/item/13239487259

No sales/MP

https://backpack.tf/item/15904022516 - MP sale

https://backpack.tf/item/14550014597 - MP sale

https://backpack.tf/item/13447781387 - Moved to Mannco

https://backpack.tf/item/13390512004 - Bought from mannco

https://backpack.tf/item/13335291080 - MP sale

https://backpack.tf/item/13246567096 - MP sale

I wouldn't shy away from putting sales that match bot buyers as it as been dumped a bunch