Unok's Chain leggings

Armor Chain Legs

Item Details

Utility 26.67
Bonus Level 14
Dyeable Yes
Sellable Yes
Tradeable Yes
Armor Info
Armor Factor 100
Base Quality 94%

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

Basic
Dexterity 12
Quickness 7
Cold Resist 4%
Body Resist 3%

Raw Item JSON

{
  "sell_value" : 37718,
  "type_data" : {
    "absorption" : 27,
    "base_quality" : 94,
    "clamped_armor_factor" : 100,
    "armor_factor" : 100
  },
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "Unok" ]
    }
  },
  "bonus_level" : 14,
  "flags" : {
    "dyable" : true,
    "emblemizable" : false
  },
  "icon" : 276,
  "utility" : 26.666666666666664,
  "delve_text" : "Realm: Midgard\n \nMagical Bonuses:\n- Dexterity: 12 pts\n- Quickness: 7 pts\n- Body: 3%\n- Cold: 4%\n \n \nArmor Modifiers:\n- 100 Base Factor\n- 27% Absorption\n- 94% Quality / 92% Condition\n \n- Effective Armor:  118 Factor\n \n \nBonus Level: 14\n",
  "slot" : 7,
  "salvage_amount" : 34,
  "artifact" : false,
  "material" : 69,
  "name" : "Unok's Chain leggings",
  "usable_by" : [ 0 ],
  "realm" : 2,
  "dye_type" : 0,
  "id" : 18208,
  "category" : 2,
  "bonuses" : [ {
    "id" : 1,
    "type" : 1,
    "value" : 12
  }, {
    "id" : 3,
    "type" : 1,
    "value" : 7
  }, {
    "id" : 16,
    "type" : 5,
    "value" : 3
  }, {
    "id" : 12,
    "type" : 5,
    "value" : 4
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?