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To calculate Haley's percent decrease from her first test (75%) to her second test (70%), we can use the following formula for percent decrease:

\[
\text{Percent Decrease} = \left(\frac{\text{Original Value} - \text{New Value}}{\text{Original Value}}\right) \times 100
\]

Where:
- Original Value = 75% (the score on her first test)
- New Value = 70% (the score on her second test)

Now let's calculate this:

\[
\text{Percent Decrease} = \left(\frac{75 - 70}{75}\right) \times 100 = \left(\frac{5}{75}\right) \times 100 \approx 6.67\%
\]

To the nearest tenth, the percent decrease is **6.7%**.

Would you like more details on the steps? 

Here are 5 questions for further practice:
1. If Haley’s first score was 85% and her second was 72%, what is the percent decrease?
2. What is the percent decrease if a score drops from 90 to 81?
3. How would you calculate the percent increase if the second test score was higher than the first?
4. If a score changes from 68 to 64, what is the percent change to the nearest tenth?
5. How would the formula change if we were asked to calculate percent increase instead of decrease?

**Tip**: Always remember to use the original value as the base when calculating percent change!

Haley got a 75% on her first math test and a 70% on her second test. What is her percent decrease from Test 1 to Test 2 to the nearest tenth?

Learn how to calculate Haley's percent decrease in her math test scores from 75% to 70%. This problem covers key percentage concepts and demonstrates how to find the percent change using the correct formula. Suitable for Grades 6-8.

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