Extract Number from Parenthesis for Use in Formula

I have the following text in a cell:

DURA-SKRIM R12BV (38 lbs/msf)

I need to extract the number 38 from the cell and use as the divisor of 10,000 then multiply the result by 1000 round that result to the nearest 5K and populate in a separate cell. So for example the output I would be looking for in this example would be 265,000. I will need to replicate this formula in other cells that will have the same format but differing numbers of characters for example:

DuraSkrim J25DT1 Textured 1-Side (115 lbs/msf)

In this case I would want to extract the number 115 from the cell and perform the same operation

Thanks in advance for your assistance.

See the formula in the green cell for the result, in the attached file.

Please add the translated formula on the forum.

Great thanks, this is the final formula I used:

=MROUND((10000/(MID(B25,FIND("(",B25)+1,FIND(" ",B25,FIND("(",B25))-FIND("(",B25)-1))+0)*1000,5000)

DURA-SKRIM R12BV (38 lbs/msf)

was in Cell B25

One final question is there any way to combine the output of two different formulas in the same cell and separate with the text "to" or a dash?

There is a chance I wanted to also calculate with a different (larger) dividend then 10,000 and include in the same cell as a range by inserting the text "to" or a dash would work as well. For example say I used 20,000 as the dividend

I would want the output to be:

265,000 to 525,000

or as formulas using the DURA-SKRIM R12BV (38 lbs/msf) in cell B25 as an example:

=MROUND((10000/(MID(B25,FIND("(",B25)+1,FIND(" ",B25,FIND("(",B25))-FIND("(",B25)-1))+0)*1000,5000)

to

=MROUND((20000/(MID(B25,FIND("(",B25)+1,FIND(" ",B25,FIND("(",B25))-FIND("(",B25)-1))+0)*1000,5000)

=celreference-1 &" Below"

=celreference+1 &" Up"

Then use 2 cellreferences (that is the way I should go).

untested:
Other option is multiply your (2) formula *1 and abstract 1