To find the percentage decrease in the number of people who went to the beach from last week to this week, you can use the following formula:
\[ \text{Percentage Decrease} = \left( \frac{\text{Last Week's Attendance} - \text{This Week's Attendance}}{\text{Last Week's Attendance}} \right) \times 100 \]
- Last week's attendance: 1,231
- This week's attendance: 977
Now, plug in the values:
\[ \text{Percentage Decrease} = \left( \frac{1231 - 977}{1231} \right) \times 100 \]
Calculate the difference:
\[ 1231 - 977 = 254 \]
Now, substitute this back into the formula:
\[ \text{Percentage Decrease} = \left( \frac{254}{1231} \right) \times 100 \]
Calculate the fraction:
\[ \frac{254}{1231} \approx 0.206 \]
Now, multiply by 100 to convert to a percentage:
\[ 0.206 \times 100 \approx 20.6 \]
Therefore, the number of people who went to the beach fell by approximately 20.6%.