Invoice Statistician in Sri Lanka Colombo –Free Word Template Download with AI
No. 42, Galle Road, Colombo 03, Sri Lanka
Tel: +94 11 234 5678 | Email: [email protected]
Registration No: 2019012345 | TIN: 700123456-7
Billed To
Colombo Metropolitan Development Authority
Secretariat Building, 100/1, Galle Road
Colombo 03, Sri Lanka
Attn: Mr. R. Perera, Director of Planning
Email: [email protected]
Prepared By
Dr. Nimali Fernando, MSc (Statistics)
Lead Statistician, Quantum Analytics
Professional Statistician License No: SL-STAT-2018-0092
Office: Level 5, Ocean City Tower, Colombo 03
Sri Lanka Colombo
| # | Description of Statistical Services | Rate (LKR) | Hours | Qty | Amount (LKR) |
|---|---|---|---|---|---|
| 01 | Comprehensive demographic data analysis and population projection modelling for the Colombo District, conducted by a senior Statistician at the Sri Lanka Colombo field office | 8,500 | 48 | 1 | 408,000.00 |
| 02 | Design and implementation of a stratified random sampling framework for the annual Sri Lanka Colombo urban infrastructure survey, including sample size determination and margin of error calculations | 7,200 | 36 | 1 | 259,200.00 |
| 03 | Statistical process control analysis and quality assurance review of municipal water supply data across 12 zones in Sri Lanka Colombo, performed by a certified Statistician | 6,800 | 40 | 1 | 272,000.00 |
| 04 | Preparation of the quarterly statistical bulletin for the Colombo Metropolitan Area, including regression analysis, time-series forecasting, and interpretive commentary by the Lead Statistician | 9,000 | 24 | 1 | 216,000.00 |
| 05 | On-site data collection supervision and statistical validation workshop for field enumerators in Sri Lanka Colombo, facilitated by the Statistician and two junior analysts | 12,000 | 8 | 2 | 192,000.00 |
| 06 | Development of a Bayesian hierarchical model for traffic flow prediction in the Colombo 01 to Colombo 07 corridor, delivered as a technical report with reproducible code | 10,500 | 32 | 1 | 336,000.00 |
| Subtotal | 1,683,200.00 |
| VAT @ 18% (Sri Lanka) | 302,976.00 |
| Professional Statistician Surcharge (5%) | 84,160.00 |
| Discount (Early Payment – 3%) | (50,496.00) |
| GRAND TOTAL (LKR) | 2,019,840.00 |
Invoice Terms & Conditions
- This Invoice is issued in accordance with the professional standards of the Sri Lanka Institute of Statistics and the regulatory requirements of the Department of Inland Revenue, Sri Lanka Colombo.
- Payment is due within fourteen (14) calendar days from the date of this Invoice. Late payments will attract a penalty of 2% per month as per Sri Lankan commercial law.
- All statistical analyses referenced in this Invoice were performed by a licensed Statistician registered with the Sri Lanka Professional Statistician Council. The Statistician's professional judgment and methodology are documented in the accompanying technical appendices.
- Services were rendered at our primary office in Sri Lanka Colombo and at the client's designated field locations within the Colombo Metropolitan Area between 1 March 2025 and 10 June 2025.
- Please reference Invoice No. QA-2025-00487 in all correspondence and remittances. Direct all queries regarding this Invoice to our billing department at [email protected].
- This Invoice is valid for 90 days from the date of issue. After this period, the Statistician's team reserves the right to re-quote rates based on current market conditions in Sri Lanka Colombo.
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