Math & money · Practical guide
How to Calculate Discounts and Sale Prices Correctly
Knowing how to calculate a discount helps you evaluate an offer instead of relying on a large percentage printed beside…
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Find the sale price and your saving, and work out stacked discounts correctly.
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Solve proportions and find a missing value.
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Articles & guides
Math & money · Practical guide
How to Calculate Percentages: Formulas, Examples, and Business Uses
Percentages turn raw numbers into useful comparisons. They help shoppers evaluate discounts, managers track revenue growth, students calculate scores, and…
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How to Calculate Percentage Error
Percentage error is often used when comparing an observed or experimental value with an accepted or reference value. Percentage Error…
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How to Calculate Percentage Growth
Percentage growth is frequently used to measure changes in sales, revenue, customers, website traffic, users, and other business metrics. Percentage…
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How to Calculate Commission Percentage
Commissions are often calculated as a percentage of sales, revenue, or another agreed amount. Commission Formula Use: Commission = Sales…
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How to Calculate a Tip Percentage
Percentage calculations are commonly used when determining tips for restaurant bills and other services. How to Calculate a Tip Suppose…
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How to Convert a Percentage to a Decimal
Converting a percentage to a decimal is necessary for many calculations because percentages are often converted into decimal form before…
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How to Convert a Decimal to a Percentage
To convert a decimal to a percentage, multiply it by 100 and add the percent sign. This conversion does not…
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How to Convert a Fraction to a Percentage
Fractions and percentages are simply different ways of representing parts of a whole. Converting a fraction to a percentage is…
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How to Calculate Profit Margin Percentage
Profit margin is an important business metric because it shows how much of your revenue remains as profit. Profit Margin…
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How to Calculate Markup Percentage
Markup is the amount added to the cost of a product to determine its selling price. Businesses frequently use markup…
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How to Calculate Profit Percentage
Profit percentage helps businesses understand how much profit they generate relative to a chosen base, such as cost. One common…
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