A local pizzeria sold 65 pizzas yesterday. suppose the actual number of pizzas sold today was 60. Describe the number of pizzas sold as a percent increase or decrease, rounded to the nearest hundredth. Show your work

To describe the number of pizzas sold today as a percent increase or decrease, we can use the following formula for percentage change:

\[
\text{Percentage change} = \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \times 100
\]

Where:
- **New Value** = 60 (pizzas sold today),
- **Old Value** = 65 (pizzas sold yesterday).

### Step 1: Subtract the Old Value from the New Value
\[
60 - 65 = -5
\]

### Step 2: Divide the result by the Old Value
\[
\frac{-5}{65} = -0.076923
\]

### Step 3: Multiply by 100 to convert to a percentage
\[
-0.076923 \times 100 = -7.69
\]

### Step 4: Interpretation
Since the result is negative, it indicates a **decrease**. Therefore, the number of pizzas sold today represents a **7.69% decrease** compared to yesterday.

### Final Answer:
The number of pizzas sold today is a **7.69% decrease** compared to yesterday.

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Would you like any additional details or explanations?

Here are 5 related questions:
1. How would the percentage change if the pizzeria sold 70 pizzas today?
2. What if the number of pizzas sold yesterday was 100 and today was 80?
3. Can you calculate the percentage change when both numbers are the same?
4. What is the percent increase if today's pizza sales were 80?
5. How does a percentage decrease differ from a percentage increase in calculations?

**Tip:** When calculating percent changes, a negative result always indicates a decrease, while a positive result indicates an increase.

A local pizzeria sold 65 pizzas yesterday. Suppose the actual number of pizzas sold today was 60. Describe the number of pizzas sold as a percent increase or decrease, rounded to the nearest hundredth. Show your work.

Learn how to calculate percentage decrease using a real-life example of pizza sales. Yesterday, 65 pizzas were sold, and today 60 were sold, representing a 7.69% decrease. This problem explains percentage change with step-by-step calculations, ideal for middle school students.

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