Cakes - How many ppl do you cater for?

We had a standard sized 3 tier cake and had 90 people for the day and a further 50 at night and there was loads left. so not a huge help, but gives you an idea.

We're having 60 people in the day and another 30 or so in the evening, our cake is a 4 tier one but with 2 sneaky dummy top tiers as I wanted it to look a little bit bigger .... We're having it with coffee and it serves about 114 portions, this isn't going to be given out as individual pieces as we're having coffee in the bar so people can help themselves. I'm really hoping there'll be loads left over, plus I'm going to squirrel some away so we can have some on our wedding night, the chocolate ganache is lush and I won't be giving a fig about dieting after then!

mr hillier is the same ? he has requested a fridge in our room so he can take food from the buffet up and eat it once everone is gone........

thanks very much for your info girls, helped lots x