Easpag's cloak

Jewelry Cloak

Item Details

Utility 31.75
Bonus Level 19
Dyeable Yes
Sellable Yes
Tradeable Yes

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

Basic
Hit Points 7
Dexterity 15
Mana Magic 4

Raw Item JSON

{
  "sell_value" : 20668,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "mantid easpag" ]
    }
  },
  "bonus_level" : 19,
  "flags" : {
    "dyable" : true,
    "emblemizable" : true
  },
  "icon" : 96,
  "utility" : 31.75,
  "delve_text" : "Realm: Hibernia\n \nMagical Bonuses:\n- Mana Magic: 4 pts\n- Dexterity: 15 pts\n- Hits: 7 pts\n \n \n \nBonus Level: 19\n",
  "slot" : 6,
  "artifact" : false,
  "material" : 1,
  "name" : "Easpag's cloak",
  "usable_by" : [ 0 ],
  "realm" : 3,
  "dye_type" : 0,
  "id" : 21235,
  "category" : 5,
  "bonuses" : [ {
    "id" : 76,
    "type" : 2,
    "value" : 4
  }, {
    "id" : 1,
    "type" : 1,
    "value" : 15
  }, {
    "type" : 4,
    "value" : 7
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?