{
  "title": "Measure how much an event table changed after the first snapshot",
  "synthetic": true,
  "inputs": {
    "early": 900,
    "later": 1000
  },
  "outputs": [
    {
      "label": "Added events",
      "actual": 100,
      "expected": 100,
      "passed": true
    },
    {
      "label": "Added share of later total %",
      "actual": 10,
      "expected": 10,
      "passed": true
    },
    {
      "label": "Change from early snapshot %",
      "actual": 11.11111111111111,
      "expected": 11.11111111111111,
      "passed": true
    }
  ],
  "constraints": [],
  "formulas": [
    {
      "label": "Added events",
      "javascript": "v.later-v.early"
    },
    {
      "label": "Added share of later total %",
      "javascript": "100*(v.later-v.early)/v.later"
    },
    {
      "label": "Change from early snapshot %",
      "javascript": "100*(v.later-v.early)/v.early"
    }
  ],
  "limits": "Two snapshots do not prove final completeness. Query changes, duplicate repair and deletions can also move a total; preserve query version and extraction time with any real evidence."
}