Is there a way to de-concatenate a concatenated string of text?

I have the following formula, =CONCATENATE("Avg $ per week is:
",DOLLAR((N2/COUNTIF(M14:M167,"0"))))

And I would like to extract from that text string the numerical value used
in the nested function N2/COUNTIF(M14:M167,"0"). Is there a way to do this?

(Yes, I could simply recalculate N2/COUNTIF(M14:M167,"0") elsewhere in the
spreadsheet, but it would be so much cooler if I could somehow isolate that
calculation from the concatenation above.)
--
Brevity is the soul of wit.