Percent of a Whole
Percent of a Whole is a key Grade 6-7 math skill that teaches students to find a given percentage of a number. Students practice multiplying a decimal or fraction form of the percent by the whole to find the part, applying it to real-world contexts like sales tax, tips, and discounts.
Key Concepts
New Concept A percent is a ratio that compares a part to a whole, where the whole is always considered to be $100\%$. What’s next Next, you'll tackle worked examples using our three row ratio table to solve for missing totals and percentages.
Common Questions
How do you find the percent of a whole number?
Convert the percent to a decimal by dividing by 100, then multiply by the whole. For example, 25% of 80 = 0.25 × 80 = 20.
What is the formula for percent of a whole?
Part = Percent × Whole. Convert the percent to a decimal first, then multiply.
What are real-life examples of percent of a whole?
Calculating sales tax on a purchase, finding the tip at a restaurant, or determining a discount amount are all real-life uses of percent of a whole.
What grade level learns percent of a whole?
Percent of a whole is typically introduced in Grade 6 and reinforced in Grade 7 math courses.
How is percent of a whole different from percent change?
Percent of a whole finds a part of a given amount, while percent change measures how much a value has increased or decreased relative to its original amount.