Select parts of a string in MATLAB

I have a character string that looks something like:

 string =

 The DOC for the 10 percent ROI = 332.45 dollars/pass

I want to retrieve only the '332.45' bit from it and I'm not sure how to go about it. I have a few possible ways I thought of (but am not sure how to implement):

1. I could select the characters based on where they appear wrt length of the string

2. I could select the characters based on the preceding string sequence.

I would need to repeat this several times since my file has some 1660 such values I need to retrieve.

Answer 1

[Azzi Abdelmalek]

EDIT

str =' The DOC for the 10 percent ROI = 332.45 dollars/pass'
out=regexp(str,'\d+\.\d+','match')

[Gautam Marwaha]

Hey, thanks, this seems to work! It returns both '10' and '332.45'. How do I select just 332.45?

[Azzi Abdelmalek]

look at edit