Question

PLEASE HELP ASAP!!!!!!!

Calculate the percent increase or decrease between the starting and ending quantities below. Round your answer to one decimal place. Start:

1) Start: 45 End: 20
2) Start: 30 End: 60

Answer 1

-55.5% Decrease

100% Increase

Step-by-step explanation:

20-45=-25

-25/45=-0.555

-0.555*100=-55.5%

60-30=30

30/30=1

1*100=100%

Hope this helps :)

Answer 2

The percent change for Start: 45 End: 20 is 56 % decrease

The percent change for Start: 30 End: 60 is 100 % increase

Solution:

We have to find the percent increase or decrease between the starting and ending quantities below

The formula for percent change is given as:

`\text { Percent change }=\frac{\text { End value - Start value}}{\text { Start value}} * 100`

If the result is positive, it is an increase

If the result is negative, it is a decrease

1) Start: 45 End: 20

Substituting the values in above formula,

`\text{ Percent change } = (20-45)/(45) * 100\\\\\text{ Percent change } = (-25)/(45) * 100\\\\\text{ Percent change } = -0.56 * 100 = -56`

Thus the result is negative

So it is 56 % decrease

2) Start: 30 End: 60

Substituting the values in above formula,

`\text{Percent change } = (60-30)/(30) * 100\\\\\text{Percent change } = (30)/(30) * 100\\\\\text{Percent change } = 100`

Here the result is positive

So it is 100 % increase