Student & Utility Tools
Percentage Calculator — Marks, Discount, Increase & Decrease
Calculate percentage of marks, find discount price, calculate percentage increase or decrease, and more. 6 types of percentage calculations. Works offline instantly.
100% offline — pure math, no server
% What is X% of Y?
Find the value that is a given percentage of a number.
Example: What is 18% of ₹5,000? → ₹900
Example: What is 18% of ₹5,000? → ₹900
What is
% of
?
Answer
—
X is what % of Y?
Find what percentage one number is of another.
Example: 450 is what % of 600? → 75%
Example: 450 is what % of 600? → 75%
is what % of
?
Answer
—
Percentage Increase / Decrease
Find by what percentage a value has changed.
Example: Price went from ₹800 to ₹1,000 → 25% increase
Example: Price went from ₹800 to ₹1,000 → 25% increase
From
→
To
Change
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Discount & Sale Price Calculator
Find the final price after discount, or find discount percentage.
Original Price & Discount %
MRP / Price
₹
−
% off
You Pay
—
Find Discount % from two prices
Original
₹
Sale price
₹
Discount %
—
Marks Percentage Calculator
Type your total marks — or fill the table subject by subject.
Marks
out of
Percentage
—
Or subject by subject
| Subject | Marks Obtained | Maximum Marks | % | |
|---|---|---|---|---|
| TOTAL | 0 | 0 | 0% |
0%
Overall Percentage
—
0
Marks Obtained
0
Total Marks
—
Highest Subject
Reverse Percentage
Find the original number before a percentage was applied.
Example: After 20% increase, price is ₹1,200. What was original? → ₹1,000
Example: After 20% increase, price is ₹1,200. What was original? → ₹1,000
After %
is
% more than original
Change "more" to "less" for decrease:
Original Value
—
Quick Calculations
GST Calculator
Amount ₹
—
Tip Calculator
Bill ₹
%
—
Salary Hike
Current ₹
%
—
Profit / Loss %
Cost ₹
Sell ₹
—
Interest Amount
₹
%/yr
—
Body Fat % (BMI helper)
Obtained
of
—
Percentage Formulas — All Types
Basic Percentage — X% of Y
Result = (X ÷ 100) × Y
Example: 18% of 5000 = (18 ÷ 100) × 5000 = 900
What Percentage — X is what % of Y
Percentage = (X ÷ Y) × 100
Example: 450 is what % of 600 = (450 ÷ 600) × 100 = 75%
Percentage Increase
% Increase = ((New − Old) ÷ Old) × 100
Example: 800 to 1000 = ((1000 − 800) ÷ 800) × 100 = 25% increase
Percentage Decrease
% Decrease = ((Old − New) ÷ Old) × 100
Example: 1000 to 700 = ((1000 − 700) ÷ 1000) × 100 = 30% decrease
Discount Price
Sale Price = Original Price × (1 − Discount% ÷ 100)
Example: ₹1000 at 20% off = 1000 × (1 − 0.20) = ₹800
You save = ₹1000 − ₹800 = ₹200
Marks Percentage
Percentage = (Total Marks Obtained ÷ Total Maximum Marks) × 100
Example: 450 out of 600 = (450 ÷ 600) × 100 = 75%
Grading System Used in India
90% and above: A+ / O (Outstanding) — Distinction
75% – 89%: A (Excellent) — First Class with Distinction
60% – 74%: B (Good) — First Class
50% – 59%: C (Average) — Second Class
35% – 49%: D (Below Average) — Pass
Below 35%: F (Fail)
Frequently Asked Questions
How to calculate percentage of marks in India?
Add up all marks obtained across all subjects. Add up all maximum marks. Divide total obtained by total maximum and multiply by 100. Example: You got 450 marks out of 600 total. Percentage = (450 ÷ 600) × 100 = 75%. Use the Marks % tab above to calculate this automatically for all your subjects.
What is 414 out of 600 in percentage?
414 ÷ 600 × 100 = 69%. For any marks: divide the marks you got by the maximum marks and multiply by 100. Type both numbers in the Marks % tab above.
How to calculate GST percentage?
To add GST: Final price = Original price × (1 + GST rate ÷ 100). For 18% GST on ₹1000: Final = 1000 × 1.18 = ₹1,180. GST amount = ₹180. To remove GST from a price that already includes it: Original = Price ÷ (1 + GST rate ÷ 100). For 18% GST inclusive ₹1,180: Original = 1180 ÷ 1.18 = ₹1,000.
How to calculate percentage increase in salary?
Use the % Change tab or the Salary Hike quick calculator. Formula: Hike amount = Current salary × Hike % ÷ 100. New salary = Current salary + Hike amount. Example: ₹50,000 salary with 15% hike. Hike = 50,000 × 15 ÷ 100 = ₹7,500. New salary = ₹57,500.
How to find original price after discount?
Use the Reverse % tab. If you know the sale price and discount percentage, the original price = Sale price ÷ (1 − Discount% ÷ 100). Example: Sale price is ₹800 after 20% discount. Original = 800 ÷ (1 − 0.20) = 800 ÷ 0.80 = ₹1,000.
Kaise use karein
- Calculation type select karein — marks percentage, discount, increase/decrease.
- Values enter karein.
- Instant result aur formula explanation milega.
Privacy & security
Multiple percentage formulas hain aur galat formula use karne par result galat aata hai. Yeh tool exact calculation type ke liye sahi formula automatically use karta hai.
Common use cases
Exam marks percentage, shopping discount, salary hike calculation, GST, profit margin — daily life ki koi bhi percentage calculation.
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Questions & problems
Ask a question or tell us if something didn’t work. Comments are public — please don’t share Aadhaar, PAN, phone numbers or other personal details.