For most non-unusuals, it's common practice to keep sales within the last 30 days. Exceptions can be made if there's no sales within that time, but they're relatively uncommon and case-by-case.
Both the low end and high end sale meet this criteria, so this suggestion is fine. Something to keep in mind for the future, however.
Sale #1
https://marketplace.tf/items/tf2/31103;11
https://backpack.tf/item/9459277091
mp.tf sale on 4/18/26
$189.99 / $1.98 = 95.96
Rounding to 96
Sale #2
https://marketplace.tf/items/tf2/31103;11
https://backpack.tf/item/16001302450
mp.tf sale on 5/2/26
$189.99 / $2.00 = 94.99
Rounding to 95
Sale #3
https://marketplace.tf/items/tf2/31103;11
https://backpack.tf/item/9146825299
mp.tf sale on 5/23/26
$189.99 / $1.92 = 98.95
Rounding to 99
Sale #4
https://marketplace.tf/items/tf2/31103;11
https://backpack.tf/item/10016690448
mp.tf sale on 6/15/26
$189.99 / $1.90 = 99.99
Rounding to 100
Sale #5
https://backpack.tf/item/17062109835
108 keys 45.33 ref
https://backpack.tf/profiles/76561198126850287#!/compare/1779667200/1779753600
https://backpack.tf/profiles/76561198310691078#!/compare/1779667200/1779753600
Rounding to 109
Sale #6
90 keys
https://backpack.tf/profiles/76561198021805155#!/compare/1779062400/1779321600
https://backpack.tf/profiles/76561198125711150#!/compare/1779235200/1779321600
Sale #7
https://backpack.tf/item/16669950274
82 keys 11 ref
https://backpack.tf/profiles/76561198316687370#!/compare/1777939200/1778284800 (ID: 17009828717)
https://backpack.tf/profiles/76561199072667073#!/compare/1778198400/1778284800
Rounding to 82
Sale #8
https://backpack.tf/item/16250236475
bulk for hmoon big chief
https://backpack.tf/profiles/76561198331686904#!/compare/1780790400/1780963200
use there
Sale #9
https://backpack.tf/item/16250236475
bulk for knifestorm el jefe
https://backpack.tf/profiles/76561198085861958#!/compare/1781827200/1782000000
use there
Sale #10
https://backpack.tf/item/16148576564
unique hypno-eyes (in date at 22.6) + 72 keys
https://backpack.tf/profiles/76561198309750232#!/compare/1775865600/1775952000
https://backpack.tf/profiles/76561198135470795#!/compare/1775347200/1776124800
22.6 + 72 = 94.6
Rounding to 95
Sale #11
https://backpack.tf/item/13521347121
80 keys
https://backpack.tf/profiles/76561198242836428#!/compare/1771113600/1780358400
https://backpack.tf/profiles/76561199510987082#!/compare/1780358400/1780444800
Sale #12
https://backpack.tf/item/9205907795
94 keys
https://backpack.tf/profiles/76561199111073161#!/compare/1779840000/1779926400
https://backpack.tf/profiles/76561198056710131#!/compare/1779753600/1779926400
Sale #13
https://backpack.tf/item/9176826490
103 keys
https://backpack.tf/profiles/76561199510987082#!/compare/1777334400/1777420800
https://backpack.tf/profiles/76561198098816836#!/compare/1777334400/1777420800
Current sellers:
$189.99 on mp.tf (9x)
85.95 keys on bp.tf (6x)
89 keys on bp.tf
91 keys on bp.tf (2x)
95 keys on bp.tf
99 keys on bp.tf
99.87 keys on bp.tf
130 keys on bp.tf
Sales: 96, 95, 99, 100, 109, 90, 82, 95, 80, 94, 103
Final price: 80 - 94
Gladiator stats: https://gladiator.tf/sales?item=Strange%20Hypno-Eyes&at=2026-06-25T06:41:56.110Z
For most non-unusuals, it's common practice to keep sales within the last 30 days. Exceptions can be made if there's no sales within that time, but they're relatively uncommon and case-by-case.
Both the low end and high end sale meet this criteria, so this suggestion is fine. Something to keep in mind for the future, however.