Percentages Practice Online 👑 Premium
From finding a percentage of a number to reverse percentages and simple interest — practice the full range of percentage problems with instant feedback and leaderboard competition. Available with Mathpop Premium.
Start Practicing PercentagesAll Percentage Topics Covered
Find a given percentage of a whole number (e.g., 25% of 80 = 20).
Determine what percentage one number is of another.
Calculate a new value after a percentage increase.
Calculate a new value after a percentage decrease.
Find the % change between two values (increase or decrease).
Find the original value before a percentage change was applied.
Calculate interest using I = PRT/100 (principal, rate, time).
Calculate final prices with added tax, tip, or discount applied.
Why Percentages Are Essential
💳 Finance & Business
Interest rates, discounts, tax, profit margins — percentages are the language of money and commerce.
📊 Data & Science
Statistical reports, scientific results, and surveys all express data as percentages. Fluency is essential for STEM.
⚡ Instant Feedback
Know immediately if your answer is right. For reverse percentages, see the working method when you're wrong.
🏆 Ranked Practice
Answering percentage questions contributes to your XP rank and leaderboard position alongside all other Mathpop modes.
Frequently Asked Questions
What is a reverse percentage?
A reverse percentage problem gives you the value after a percentage change and asks for the original. For example: "After a 20% increase, a value is 120. What was the original?" (Answer: 100)
Is percentages practice free?
Percentages is a premium category available with the Mathpop Premium Pass ($4.99/month or $49.99/year).
What curriculum level does this cover?
Percentage content covers middle school basics (percent of a number) through high school and early university topics (reverse percentages, simple interest, percentage change in scientific contexts).
What is the formula for simple interest?
Simple Interest I = (P × R × T) / 100, where P is the principal amount, R is the rate per year, and T is the time in years. Mathpop shows the formula in the question to help you learn.