Percentage formulas people use most
The Daily Print Project has a free percentage calculator for finding percent of a number, what percent one number is of another, and percentage increase or decrease. These are the three everyday percentage questions that show up in shopping, budgeting, schoolwork, and planning.
Percent of a number
Example: 15% of 80 = 12.
Part as a percent
Example: 45 out of 60 = 75%.
Percentage change
Example: 120 to 150 = 25% increase.
Discount math
Example: 30% off $50 saves $15.
Where percentage calculators help
- Find sale prices and compare discounts before shopping.
- Check grocery price changes and household item savings.
- Calculate budget increases, savings goals, and spending changes.
- Compare mortgage down payment percentages before estimating monthly cost.
- Check grades, tips, score changes, and everyday percent questions.
Use the percentage calculator for flexible percent math. Use the discount calculator when the question is specifically about final price after a sale, coupon, or tax.
Related calculator and planning resources
Free percentage calculatorPercent of a number, part percent, and percent change.
Discount calculatorSale price, coupon savings, and estimated tax.
Free online calculatorQuick arithmetic for everyday math.
Mortgage calculatorUse percentages for down payment comparisons.
Monthly budget planner printableTrack percentage changes in spending and savings.
Printable shopping list templatePlan purchases before using discount math.
Printable grocery list by categoryCompare food and household prices before checkout.