curl --request GET \
  --url https://api.example.com/v1/crm/metrics/efficency/inventory/

{
  "count": 123,
  "results": [
    {
      "name": "<string>",
      "request_cnt": 123,
      "request_days": 123,
      "success_cnt": 123,
      "success_days": 123,
      "object_id": 123,
      "days": 123,
      "earnings": "0.00",
      "success_sum": "0.00",
      "efficency": "0.00",
      "request_sum": "0.00"
    }
  ],
  "next": "http://api.example.org/accounts/?page=4",
  "previous": "http://api.example.org/accounts/?page=2"
}