{
  "schema_version": 1,
  "chart_type": "cartesian",
  "meta": {
    "title": "Higher-capacity venues occupy the strongest profit positions",
    "quality_profile": "showcase"
  },
  "data": {
    "columns": [
      {
        "id": "ad_spend",
        "type": "number",
        "unit": "GBP k",
        "label": "Advertising spend",
        "values": [18, 24, 31, 39, 47, 56, 68, 75]
      },
      {
        "id": "profit",
        "type": "number",
        "unit": "GBP k",
        "label": "Event profit",
        "values": [9, 14, 13, 22, 28, 31, 38, 44]
      },
      {
        "id": "capacity",
        "type": "number",
        "unit": "seats",
        "label": "Venue capacity",
        "values": [350, 520, 420, 850, 1100, 950, 1600, 2100]
      }
    ]
  },
  "encoding": {
    "x": {
      "column": "ad_spend",
      "scale": "linear",
      "label": "Advertising spend (GBP k)"
    },
    "y": {
      "zero": false,
      "label": "Event profit (GBP k)"
    }
  },
  "series": [
    {
      "id": "venues",
      "mark": "bubble",
      "y": "profit",
      "size": "capacity",
      "label": "Venue",
      "role": "primary"
    }
  ],
  "cards": [
    {
      "title": "Takeaway",
      "items": [
        "The 2,100-seat venue has the highest observed profit at GBP 44k.",
        "The 350-seat venue has the lowest observed profit at GBP 9k."
      ]
    }
  ]
}