Return String with "%" in Proc FCMP

[Martha]

I am trying to build a function in SAS that will concatenate and number and a percent value and return a character string result like X (Y%). Here is my code:

proc fcmp outlib = func.funcs.mwfunc;
	/* Create function to return a string in the style X (Y%) */
	function npct(n, pct) $ 25;
		length concatp $25 n pct 8;
		n_f = n;
		pct_f = pct;
		concatp = cat(n_f, " (", round(pct_f*100,0.01),"%",")");
		return(concatp);
	endsub;
quit;

/* Test function */
data _null_;
	x = npct(5,0.10);
	put x;
run;

When I test this function, it produces the following result:

5 (10=)

Instead of 5 (10%).

How do I correct this? Is there some kind of masking function I need?

Thanks for the help. I am working in SAS 9.4.

[Tom · Accepted solution]

Just use single quotes.

'%'

in your function definition.

[Martha]

Thank you, that was way easier than I anticipated!