Find the percent of the increase or decrease.

Original:4500
New:4005

the percent is lower which is 40%

Set it up in words:
4005 is what percent of 4500?
Now make the words into numbers:
4005=4500x
x=0.89
89% decrease.
If you don't get it please let me know. :)

If 4005 is 89% of 4500, then the percent decrease must have been 100 - 89 = 11%. Another way of doing the same thing is:

difference is decrease of 4500-4005 = 495.

[495/4500] x 100 = 11%

Oh right, sorry forgot the last step

No problem! Here's the step you missed:

To find the percent decrease, you need to compare the difference between the original value and the new value (4500 - 4005) to the original value (4500):

Percent decrease = (Difference / Original value) × 100

In this case, the difference is 4500 - 4005 = 495.

Now, let's plug the values into the formula:

Percent decrease = (495 / 4500) × 100

Calculating this:

Percent decrease ≈ 11%

So, the percent decrease from 4500 to 4005 is approximately 11%.