{
  "invoiceNumber": "10001",
  "materials": [
    {
      "description": "Marking of foundation layout at site",
      "quantity": 5.0,
      "rate": 200.0,
      "total": 1000.0
    },
    {
      "description": "Earth excavation up to the required depth by machine",
      "quantity": 4.0,
      "rate": 150.0,
      "total": 600.0
    },
    {
      "description": "Earth excavation and levelling of soil by hand- operated tools",
      "quantity": 2.0,
      "rate": 125.0,
      "total": 250.0
    },
    {
      "description": "Placing of PCC",
      "quantity": 15.0,
      "rate": 78.0,
      "total": 1170.0
    },
    {
      "description": "Placement of reinforcement steel",
      "quantity": 30.0,
      "rate": 165.0,
      "total": 4950.0
    },
    {
      "description": "Erection of concrete formworks for footings",
      "quantity": 34.0,
      "rate": 230.0,
      "total": 7820.0
    }
  ],
  "labor": [
    {
      "description": "Marking of foundation layout at site",
      "hours": 30.0,
      "rate": 60.0,
      "amount": 1800.0
    },
    {
      "description": "Earth excavation up to the required depth by machine",
      "hours": 23.0,
      "rate": 60.0,
      "amount": 1380.0
    },
    {
      "description": "Earth excavation and levelling of soil by hand- operated tools",
      "hours": 19.0,
      "rate": 60.0,
      "amount": 1140.0
    },
    {
      "description": "Placing of PCC",
      "hours": 35.0,
      "rate": 60.0,
      "amount": 2100.0
    },
    {
      "description": "Placement of reinforcement steel",
      "hours": 76.0,
      "rate": 60.0,
      "amount": 4560.0
    },
    {
      "description": "Erection of concrete formworks for footings",
      "hours": 53.0,
      "rate": 60.0,
      "amount": 3180.0
    }
  ],
  "miscellaneousCharges": [
    {
      "description": "Transportation of materials",
      "amount": 430.0
    },
    {
      "description": "Consultations with architect",
      "amount": 760.0
    }
  ],
  "totals": {
    "totalMaterials": 15790.0,
    "totalLabor": 14160.0,
    "totalMiscellaneous": 1190.0,
    "subtotal": 31140.0,
    "taxRate": 3.8,
    "totalTax": 1183.32,
    "total": 32323.32
  }
}