Question

Directions: Calculate the percent increase or decrease between the starting and ending

quantities below. Round your answer to one decimal place.

Answer 1

1. Percent increase: 233.33%

2. Percent increase: 122.22%

3. Percent decrease: -15%

4. Percent decrease: -55.56%

6. Percent increase: 100%

Explanation:

To calculate the percent increase or decrease between the starting and ending quantities, we can use the following formula:

`\sf \textsf{Percent change} = \frac{\textsf{Ending quantity} - \textsf{Starting quantity}}{\textsf{Starting quantity}} * 100\%`

Let's calculate each of them.

Here is a calculation the percent increase or decrease for all of the given below:

1.

Start : 3

End: 10

`\sf \textsf{Percent change}: (10 - 3)/(3) * 100\% \\\\ = (7)/(3) * 100\% \\\\ = 233.33\%`

2.

Start : 9

End: 20

`\sf \textsf{Percent change}: (20 - 9)/(9) * 100\% \\\\ = (11)/(9) * 100\% \\\\ = 122.22\%`

3.

Start : 100

End: 85

`\sf \textsf{Percent change}: (85 - 100)/(100) * 100\% \\\\ = (-15)/(100) * 100\% \\\\ = -15\%`

4.

Start : 45

End: 20

`\sf \textsf{Percent change}: (20 - 45)/(45) * 100\% \\\\ = (-25)/(45) * 100\% \\\\ = -55.56\%`

5.

Start : 30

End: 60

`\sf \textsf{Percent change}: (60 - 30)/(30) * 100\%\\\\ = (30)/(30) * 100\% \\\\ = 100\%`

So, the final answer is:

1. Percent increase: 233.33%

2. Percent increase: 122.22%

3. Percent decrease: -15%

4. Percent decrease: -55.56%

6. Percent increase: 100%