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a companys stock was selling at \\$24 a share. a month later, it is sel…

Question

a companys stock was selling at \\$24 a share. a month later, it is selling at \\$30 a share. what is the percent change?

? \\%

Explanation:

Response

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"concepts_used": [
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<reasoning>

Identify the initial and final values

Using the Percentage Calculations knowledge point
\[

$$\begin{aligned} &\text{Initial Value } (V_i) = 24\\ &\text{Final Value } (V_f) = 30 \end{aligned}$$

\]

Calculate the absolute change

Using the Percentage Calculations knowledge point
\[

$$\begin{aligned} \text{Change} &= V_f - V_i\\ &= 30 - 24\\ &= 6 \end{aligned}$$

\]

Calculate the percent change

Using the Percentage Calculations knowledge point
\[

$$\begin{aligned} \text{Percent Change} &= \frac{\text{Change}}{\text{Initial Value}} \times 100\%\\ &= \frac{6}{24} \times 100\%\\ &= 0.25 \times 100\%\\ &= 25\% \end{aligned}$$

\]
</reasoning>

<answer>
A company's stock was selling at $24 a share. A month later, it is selling at $30 a share. What is the percent change?

<blank>25</blank>%
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Percent Change"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"tutor",
"mastery_adaptive_brevity"
],
"needs_drawing": false,
"concepts_used": [
"Percentage Calculations"
],
"new_concepts": [
"Percent Change"
],
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"Percentage Calculations",
"Percent Change"
]
}
</pre_analysis>

<reasoning>

Identify the initial and final values

Using the Percentage Calculations knowledge point
\[

$$\begin{aligned} &\text{Initial Value } (V_i) = 24\\ &\text{Final Value } (V_f) = 30 \end{aligned}$$

\]

Calculate the absolute change

Using the Percentage Calculations knowledge point
\[

$$\begin{aligned} \text{Change} &= V_f - V_i\\ &= 30 - 24\\ &= 6 \end{aligned}$$

\]

Calculate the percent change

Using the Percentage Calculations knowledge point
\[

$$\begin{aligned} \text{Percent Change} &= \frac{\text{Change}}{\text{Initial Value}} \times 100\%\\ &= \frac{6}{24} \times 100\%\\ &= 0.25 \times 100\%\\ &= 25\% \end{aligned}$$

\]
</reasoning>

<answer>
A company's stock was selling at $24 a share. A month later, it is selling at $30 a share. What is the percent change?

<blank>25</blank>%
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Percent Change"
]
}
</post_analysis>