Unit 3, Lesson 15
Finding This Percent of That
Grade 6
15.3
Activity
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Three music artists plan to donate a percentage of the money they make from selling merchandise.
Complete the tables to show how much each artist would donate for different amounts of merchandise sales.
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Artist A plans to donate 1% of the amount of merchandise sales.
sales (\$) 1 40 100 3,200 donation (\$) -
Artist B plans to donate 15% of the amount of merchandise sales.
sales (\$) 1 40 100 3,200 donation (\$) -
Artist C plans to donate 67% of the amount of merchandise sales.
sales (\$) 1 40 100 3,200 donation (\$)
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Another artist plans to donate of the money made from selling merchandise. In the table, write an expression for the amount of donation for each sales amount.
sales (\$) 1 40 100 3,200 donation (\$)
Student Lesson Summary
Suppose a business donates 1% of its profits to charity each year. How much would it donate if it made \$7,500 in profits?
To find 1% of 7,500, we can multiply 7,500 by or 0.01.
, so the business would donate \$75.
What if the business donates 6% of its profits to charity? Because 6% of 7,500 is 6 times as much as 1% of 7,500, we can calculate or .
, so the business would donate \$450.
The same reasoning can help us find 1%, 6%, and other percentages of another number:
- To find 1% of a number, we can multiply that number by or 0.01.
- To find 6% of a number, we can multiply the number by or 0.06.
- To find 49% of a number, we can multiply the number by or 0.49.
- To find 135% of a number, we can multiply the number by or 1.35.
In general, to find of any number, , we can calculate: .
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