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Mathematics 7 Online
OpenStudy (logan13):

What is the percent decrease from 120 to 84?

OpenStudy (logan13):

@mathstudent55

OpenStudy (mathstudent55):

Use the same formula: \(percent~change = \dfrac{new~number - old~number}{old~number} \times 100\)

OpenStudy (logan13):

decrese though

OpenStudy (mathstudent55):

First, fill in the numbers of this problem into the formula. Then calculate it.

OpenStudy (mathstudent55):

In the formula, if the answer is negative, it's a percent decrease. If the answer is positive, it's a percent increase.

OpenStudy (mathstudent55):

If the number went from 120 to 84, then the new number is 84, and the old number is 120.

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