Percentages in Shopping Discounts
Irresistible offers? Thanks to the percentage! Easily calculate how much you'll save.
- 🛍️ S/200 with 25% discount → you pay S/150.
- 💥 “70% OFF” means a big discount off the original price.
Free Online Percentage Calculators
Calculate percentages, discounts, increases, fees, and more — all in one place.
Simple tools to help you make fast and accurate percentage calculations online.
Discount Calculator
Simple
Example: Simple
a store discount
If a product costs
and has
%
discount,
The final price is
$
Double Discount Calculator
Example: a store discount + an extra coupon discount
If a product costs
and has a store discount of
%
and you also have a coupon of
%
off,
Calculadora de Cuota Inicial
Ejemplo: si un departamento cuesta S/ 350,000 y debes pagar 10% de inicial
Si el departamento cuesta
y debo pagar una inicial del
%
What Are Percentage Calculators?
Percentage calculators are tools that help you find increases, decreases, and proportions without doing manual math. They’re perfect for everyday use — from calculating discounts when shopping to figuring out business growth, taxes, or investment returns.
Quick Percentage Calculator
Try a quick example below 👇
Uses of Percentages
Percentages in Finance and Economics
Percentages drive the world of money: interest, inflation, taxes... everything!
- 💰 8% interest on S/1000 → you earn S/80 per year.
- 📉 6% inflation reduces your purchasing power.
Percentages in Statistics
Surveys? Data? Percentages tell stories without a thousand numbers.
- 📊 72% say “Yes” → 3 out of 4 agree.
- 🚬 18% smoke → social analysis in action.
Percentages in Education
Pass or fail? Percentages tell you if you made it.
- 📘 45 out of 50 points → 90% grade!
- 🎯 At least 70% required to pass a subject.
Percentages in Health
From body fat to medical effectiveness, percentages help take care of your health too!
- 💪 22% body fat: within the healthy range.
- 💊 Treatment effective in 85% of cases.
Percentages in Everyday Life
Percentages save you at the restaurant or in the kitchen—literally!
- 🍽️ 10% tip on S/150 → you leave S/15.
- 👨🍳 Cooking for 2 → cut the recipe by 50%.
Percentage Calculators
Simple Percentage
What is
of
?
%
| 500 | 100 |
Total: 500
25%
75%
125
375
Percentage of a Total
If
is
, then the total is:
%
| 100 |
Total: 200
25%
75%
50
150
Percentage of an Amount
If the total is
then
, represents:
%
Total: 200
25%
75%
40
160
Percentage Change
If
%
is
, then:
%
Total: 16.67
20%
80%
40
160
Tips for Solving Percentage Problems
Learn to handle percentages with these practical tips that will help you solve any exercise quickly and confidently.
Use the Base Formula
Remember that the percentage of a quantity is calculated
as:
(percentage × quantity) / 100.
This is the foundation for all problems of this type.
Identify if it's an Increase or a Decrease (Discount)
If the value grows (interest, bonus, taxes), the percentage is added. If it decreases (sales, losses, discounts), the percentage is subtracted.
Convert Percentages to Decimals
It is sometimes easier to work with decimals: 25% = 0.25, 10% = 0.10, 8% = 0.08. Multiply the number by the decimal to get the result.
Check Your Calculations
Always verify your steps: First, calculate the percentage, then add or subtract depending on the type of problem. A small error can change the entire result.
Practice with Real-Life Situations
Apply percentages in your daily life: store discounts, taxes, tips, yields, etc. This will reinforce your understanding practically.
Use a Calculator if Needed
Don't hesitate to use a calculator to confirm your math. Accuracy is important, especially in financial or scientific contexts.