john wrote...
....
if the party is between 20 & 40 i use 2 bottles
if it's between 40 & 60 i use 4 bottles
if it's between 60 & 100 i use 8 bottles
....

=LOOKUP(NumberOfPeople,{0;20;40;60;100},{"why bother";2;4;8;"Whoo
hoo!"})