There were 400 visitors at a zoo in the morning. The number of visitors increased to 640 in the afternoon. What was the percentage increase in the number of visitors?

(640-400)/400 = ___

Well, it looks like the zoo had quite a crowd! Let's calculate the percentage increase in the number of visitors. We'll start by finding the difference between the initial and final number of visitors:

640 - 400 = 240

Now, let's divide the difference by the initial number of visitors:

240 / 400 = 0.6

To find the percentage increase, we multiply the decimal result by 100:

0.6 x 100 = 60

Therefore, the number of visitors increased by 60%. That's a wild jump!

To calculate the percentage increase in the number of visitors, you can follow these steps:

Step 1: Calculate the difference between the initial number of visitors in the morning and the final number in the afternoon.
Difference = Final number - Initial number
Difference = 640 - 400
Difference = 240

Step 2: Divide the difference by the initial number and multiply by 100 to get the percentage.
Percentage increase = (Difference / Initial number) * 100
Percentage increase = (240 / 400) * 100
Percentage increase = 0.6 * 100
Percentage increase = 66.67

Therefore, the percentage increase in the number of visitors is approximately 66.67%.

To find the percentage increase in the number of visitors, you need to calculate the difference between the initial number of visitors and the final number of visitors, and then divide that difference by the initial number of visitors.

Step 1: Find the difference between the initial and final number of visitors:
640 (final number of visitors) - 400 (initial number of visitors) = 240

Step 2: Divide the difference by the initial number of visitors:
240 / 400 = 0.6

Step 3: Multiply the result by 100 to find the percentage:
0.6 * 100 = 60

Therefore, the percentage increase in the number of visitors is 60%.