In the first hour after opening, a bakery sold 80 muffins. However, in the second hour, they only sold 64 muffins.

What is the percent decrease in muffin sales?

To calculate the percent decrease in muffin sales from the first hour to the second hour, follow these steps:

1. **Determine the difference in sales:**
   \[
   \text{Difference} = 80 - 64 = 16
   \]

2. **Divide the difference by the initial value (first hour sales):**
   \[
   \frac{\text{Difference}}{\text{First hour sales}} = \frac{16}{80} = 0.2
   \]

3. **Convert the result to a percentage:**
   \[
   0.2 \times 100 = 20\%
   \]

So, the percent decrease in muffin sales is **20%**.

Would you like further explanation or have any questions?

Here are 5 related questions for further exploration:
1. If the bakery sold 50 muffins in the third hour, what would the percent decrease be from the second to the third hour?
2. How many muffins would the bakery have sold in the second hour if the percent decrease was 25% instead of 20%?
3. What would the percent increase be if the bakery sold 100 muffins in the third hour?
4. If sales decrease by 20% each subsequent hour, how many muffins will the bakery sell in the fourth hour?
5. How would you calculate the average number of muffins sold per hour over the first two hours?

**Tip:** Percent change can be applied in many contexts, such as economics, physics, and business to track performance or growth trends.

In the first hour after opening, a bakery sold 80 muffins. However, in the second hour, they only sold 64 muffins. What is the percent decrease in muffin sales?

Calculate the percent decrease in muffin sales at a bakery, from 80 muffins in the first hour to 64 muffins in the second hour. This step-by-step solution teaches key concepts like percentage decrease and basic arithmetic. Perfect for students in Grades 5-7.

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