Percentage & VAT Calculator
Percent of a number, percentage change, add or remove 13% VAT, and marks percentage.
Free tool by EngineeringNepal.com.np · Results are for guidance; check critical figures with a qualified engineer.
Everyday percentage calculations
This page puts the percentage sums people need most in one place: VAT on bills and quotations, a percentage of an amount, marks as a percentage, and how much a price has gone up or down, such as the change in cement or steel rates between two quotations.
VAT in Nepal
The standard VAT rate in Nepal is 13%. To add VAT, multiply the amount by 1.13. To find the amount before VAT from a VAT-inclusive bill, divide by 1.13. For example, a bill of Rs 11,300 including VAT is Rs 10,000 plus Rs 1,300 VAT.
Formulas
- X% of Y = X × Y ÷ 100
- X as a percent of Y = X ÷ Y × 100
- Percentage change = (new − old) ÷ old × 100
Frequently asked questions
How do I find my percentage of marks?
Divide marks obtained by full marks and multiply by 100. 412 out of 500 is 82.4%. To convert grades into GPA, use the GPA calculator.
How to use each part of the calculator
- VAT: type the amount, choose whether it is before VAT or already includes VAT, and keep the rate at 13% unless your item has a different rate. The tool shows the amount before VAT, the VAT and the total, rounded to paisa.
- What is X% of Y: for discounts, retention money, a share of a quantity or a commission.
- X is what percent of Y: for marks, progress (work done out of total) or a ratio of two quantities.
- Percentage increase or decrease: type the old value first and the new value second. The tool shows the change, an up or down arrow, and the difference in the same units.
Worked examples with Nepali figures
1. Adding VAT to a quotation
A contractor quotes Rs 4,85,000 for plaster work, excluding VAT. Choose "Before VAT": VAT at 13% is Rs 63,050 and the total is Rs 5,48,050. When comparing quotations, compare like with like; one firm may quote with VAT and another without.
2. Removing VAT from a bill
A hardware bill shows Rs 1,69,500 including VAT. Choose "Including VAT": the amount before VAT is Rs 1,50,000 and the VAT is Rs 19,500. Do not take 13% of 1,69,500 (that gives Rs 22,035, which is wrong). The correct way is to divide by 1.13.
3. Price change between two quotations
Cement was Rs 830 per bag in the first quotation and Rs 900 in the second. In the increase/decrease box, enter 830 then 900: an increase of about 8.43% (difference Rs 70). For steel moving from Rs 98 to Rs 105 per kg, the rise is about 7.14%. These figures are only examples; check current rates with your supplier.
4. Marks percentage
412 marks out of 500 is 82.4%. To find the marks needed for a target, use X% of Y: 65% of 800 is 520 marks. Universities in Nepal grade on GPA as well, so see the GPA calculator for that side.
Percentage rules that catch people out
| Situation | Wrong shortcut | Correct result |
|---|---|---|
| Price rises 10%, then falls 10% | Back to the start | 1.10 x 0.90 = 0.99, so 1% lower |
| Rate rises 5%, then another 8% | 13% in total | 1.05 x 1.08 = 1.134, so 13.4% |
| Interest rate goes from 9% to 10% | Up 1% | Up 1 percentage point, which is 11.1% more interest |
| 5% discount on Rs 1,00,000, then VAT | Rs 1,08,000 | 1,00,000 x 0.95 x 1.13 = Rs 1,07,350 |
| Removing 13% VAT from a total | Total x 0.87 | Total / 1.13 |
VAT in Nepal: points to check
The standard VAT rate is 13%, and published summaries of the 2083/84 budget say it was kept at that level. Some goods and services are exempt or treated differently, and only VAT-registered sellers may charge VAT on a tax invoice. For any doubt about whether an item carries VAT, check the Inland Revenue Department website or ask your tax adviser. If you are working out income tax rather than VAT, use the income tax calculator.
Common mistakes
- Entering the new value first in the change box. The old value must come first, or the percentage is worked out on the wrong base.
- Adding VAT twice: once in the item rates and again on the total.
- Rounding each line of a bill before adding. Add first, then round the final total.
- Calling a change in an interest rate or a pass rate "percent" when it is a change in percentage points.
Frequently asked questions
How do I find 13% VAT on an amount?
Multiply the amount by 0.13. The total with VAT is the amount x 1.13.
How do I find the price without VAT?
Divide the VAT-inclusive total by 1.13. Rs 11,300 / 1.13 = Rs 10,000.
How is percentage progress of work worked out?
Value of work done divided by the contract amount, x 100. Rs 36 lakh done on a Rs 1.2 crore contract is 30%.
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