turn concatinated string into formula

Good morning,
This is one I have wrested with before.

is there a was (without using VBA) to turn a concatenation into a formula?

currently my (array) formula looks like this:
=CONCATENATE("(",ABS(G44),INDEX(Specifications[[Reading % Model 175]:[Counts Model 179]],MATCH(1,(E44&" "&D44=Specifications[Function])*(ABS(G44)>=Specifications[MIN Range])*(ABS(G44)<=Specifications[MAX Range]),0),MATCH("Reading % Model "&ModelMeter,Specifications[[#Headers],[Reading % Model 175]:[Counts Model 179]],0)))

basically it is concatenating: "(",600,*0.9%)+2 and as text is correctly returning: (600*0.9%)+2
however I would like to execute this formula, I have tried adding +0 at the end but it doesn't seem to work.

Can any one help?

Select the cell in question

CTRL + H (this will open the Edit /Replace userform)

Find what: (
Replace with: =(
Replace All

The cell will now contain the formula:

=(600*0.9%)+2