proc format;
value $missfmt ' '='Missing' other='Not Missing';
value missfmt .='Missing' other='Not Missing';
run;
proc freq data=one;
format _CHAR_ $missfmt.;
tables _CHAR_ / missing missprint nocum nopercent;
format _NUMERIC_ missfmt.;
tables _NUMERIC_ / missing missprint nocum nopercent;
run;