data bikemodels;
length Model $12 Class $8 Frame $15;
input Model $ Class $ Price Frame $;
cards;
BlackBora Track 796 Aluminum
DeltaBreeze Road 399 CroMoly
JetStream Track 1130 CroMoly
Mistral Road 1995 CarbonComp
Nor'easter Mountain 899 Aluminum
SantaAna Mountain 459 Aluminum
Scirocco Mountain 2256 Titanium
TradeWind Road 759 Aluminum
;
run;
proc print data=bikemodels;
run;

* where w/o macro;

proc print data=bikemodels noobs;
where Class='Mountain';
format Price dollar6.;
title 'Current Models of Mountain Bicycles';
run;
title;

* where with macro;

%LET bikeclass=Mountain;

proc print data=bikemodels noobs;
where Class="&bikeclass";
format Price dollar6.;
title "Current Models of &bikeclass Bicycles";
run;