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Percentage, VAT & Discount Calculator • ප්‍රතිශත, VAT බදු සහ වට්ටම් කැල්කියුලේටරය

Compute percentages, Sri Lanka 18% VAT & 2.5% SSCL taxes, retail discounts, profit margin vs markup, and percentage increase or decrease with instant formulas.

1. What is X% of Y? (Y හි X% කීයද?)

Calculate percentage shares, Sri Lanka VAT, SSCL, and withholding tax / බදු සහ ප්‍රතිශත කොටස් ගණනය කරන්න

Sri Lanka Tax & Finance Presets / බදු සහ මුල්‍ය ප්‍රතිශත:
%
Formula: (18 / 100) × 25000 = 4500
Calculated Result • ප්‍රතිඵලය

18% of 25,000 is:

18% Calculation
4,500Value

Formula: (18 / 100) × 25,000

Calculation Detailsගණනය කිරීමේ විස්තර
Calculated Share (ප්‍රතිඵලය)
4,500
Remainder (ඉතිරි මුදල)
20,500
Multiplier Factor
0.1800

Official Sri Lanka Commercial & Tax Percentage Reference Guide

Essential formulas and statutory tax percentages applied across commercial retail, import/export, payroll, and banking in Sri Lanka.

18% Value Added Tax (VAT)

Standard VAT rate in Sri Lanka is 18%. To calculate VAT on any net amount, multiply by 0.18. To calculate the VAT-inclusive price, multiply net price by 1.18.

2.5% SSCL

Social Security Contribution Levy (SSCL) is charged at 2.5% on liable turnover and imports under the SSCL Act No. 25 of 2022.

Markup vs Margin

Never confuse Markup with Margin! A 25% markup on cost yields a 20% margin on sales. Margin can never exceed 100%, but markup can be 200% or higher.

How Percentage Calculations Work (ප්‍රතිශත ගණනය කෙරෙන ආකාරය)

Percentages represent fractions of 100 and are essential in commercial trade, taxation, and personal finance:

  • 18% VAT (Value Added Tax): Formula: Base × 0.18. An item priced at Rs. 10,000 attracts Rs. 1,800 VAT, totaling Rs. 11,800.
  • Percentage Change: Formula: ((New - Old) / |Old|) × 100%. A positive result indicates price inflation or wage growth; a negative result indicates a markdown.
  • Markup vs Profit Margin: Markup is profit divided by cost, whereas Margin is profit divided by selling price. A 50% markup equals a 33.33% gross profit margin.
Percentage Calculator Sri Lanka 2026 | 18% VAT, 2.5% SSCL, Discounts & Margins | ප්‍රතිශත කැල්කියුලේටරය | HANDIYA