{
  "topic": "model comparison report",
  "worked_example": {
    "purchases": 240,
    "data_driven": {
      "Paid Search": 48,
      "Organic Search": 96,
      "Email": 36,
      "Direct": 60
    },
    "paid_and_organic_last_click": {
      "Paid Search": 72,
      "Organic Search": 84,
      "Email": 24,
      "Direct": 60
    },
    "data_driven_total": 240,
    "last_click_total": 240,
    "difference_data_driven_minus_last_click": {
      "Paid Search": -24,
      "Organic Search": 12,
      "Email": 12,
      "Direct": 0
    }
  },
  "checkpoints": [
    "Advertising > Attribution > Model comparison",
    "One key event selected",
    "Dimension is Default channel group"
  ]
}