In 2013​, the number of graduating seniors taking the ACT exam was 1 comma 799 comma 646. In 2011​, a total of 1 comma 621 comma 729 graduating seniors took the exam. By what percent did the number increase over this period of​ time?

To calculate the percent increase in the number of graduating seniors taking the ACT exam from 2011 to 2013, we can use the following formula:

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

Where:
- New Value (2013) = 1,799,646
- Old Value (2011) = 1,621,729

Substituting these values into the formula:

\[
\text{Percent Increase} = \left( \frac{1,799,646 - 1,621,729}{1,621,729} \right) \times 100
\]

Let me calculate that for you.The number of graduating seniors taking the ACT exam increased by approximately **10.97%** from 2011 to 2013.

Would you like further details or have any other questions? 

Here are 5 related questions to explore:
1. How do we calculate percent decrease in a similar scenario?
2. What would be the absolute increase in the number of seniors taking the exam?
3. How would this calculation change if we had data for 2014 as well?
4. What are some typical uses of percentage change in economics?
5. Can percent increase ever exceed 100%?

**Tip:** Always double-check if the base value (old value) is correctly identified when calculating percentage changes!

In 2013, the number of graduating seniors taking the ACT exam was 1,799,646. In 2011, a total of 1,621,729 graduating seniors took the exam. By what percent did the number increase over this period of time?

Learn how to calculate the percent increase in the number of graduating seniors taking the ACT exam from 2011 to 2013. This problem involves using the percentage change formula with data points from 2011 and 2013, suitable for students in Grades 6-8.

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