Master Calc - All Financial Calculator
Math & Utility
percent

Percentage Calculator: Discount, Marks and Profit Formula

calendar_today 20 Jun 2026 6 min read

Percentages appear everywhere — shop discounts, exam marks, profit margins, GST markup and salary hikes. A percentage calculator saves time and reduces errors when you need quick, accurate answers.

Basic percentage formula

Percentage = (Part / Whole) × 100

Example: 45 marks out of 60 = (45/60) × 100 = 75%.

Discount calculation

If MRP is ₹2,000 and discount is 25%, discount amount = 2000 × 25/100 = ₹500. Sale price = ₹1,500.

Percentage increase and decrease

Increase: New = Old × (1 + Rate/100). Decrease: New = Old × (1 − Rate/100). Use our Percentage Increase/Decrease tool for instant results.

Who uses this?

  • Students checking exam scores
  • Shop owners calculating offer prices
  • Freelancers estimating profit margin

Use Master Calc Percentage Calculator — free, online, no signup.

Disclaimer: For learning and daily calculations only.