data data1;
do i=50 to 100;
if i<75 then score='c';
else if i<90 then score='b';
else score='a';
output;
end;
run;
data data2;
input y x;
z=y/x;
cards;
231 14.8
248 15.1
302 12.8
147 9.25
88 7
265 13.3
;
run;
proc print data=data2;
var z;
run;