{
  "count": 5,
  "revenue": 71400,
  "by_item": [
    {
      "item": "キャベツ",
      "count": 3,
      "revenue": 32400
    },
    {
      "item": "トマト",
      "count": 1,
      "revenue": 20000
    },
    {
      "item": "玉葱",
      "count": 1,
      "revenue": 19000
    }
  ]
}