{
  "industry": "Warehousing & Storage",
  "naics": "493",
  "metro": "Richmond, VA",
  "grain_of_margin": "national",
  "national_net_margin_pct": -7.2,
  "metro_establishments": 98.0,
  "metro_employment": 7286.0,
  "metro_avg_weekly_wage": null,
  "note": "Margin is national. Counts + wage are metro (CBSA) grain. No local margin exists."
}