Vega-Lite — conversion funnel

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "data": {"values": [
    {"step":"Visit","count":10000},
    {"step":"Sign-up","count":3200},
    {"step":"Activate","count":1900},
    {"step":"Subscribe","count":410}
  ]},
  "mark":"bar",
  "encoding": {
    "y":{"field":"step","type":"nominal","sort":null},
    "x":{"field":"count","type":"quantitative"}
  }
}