I just for an email order and I'm on vaca, don't have my yearbook with me. I need to know how many boxes Of cake mix I need for a 70 person cake. I use the Wasc cake. How many teirs does that come out to? THANKS!!!
Since you use WASC each recipe equals 1 1/2 boxes of mix.
It would be much easier to figure out if you tell us what size pan(s) you will use.
My closes guess would be 3 mixes as each box of mix (w/o extras) serves up to 20, then add the extra ingredients should give you another 30 or so servings.