How much food will you end up wasting this Christmas holiday?

Just about every year I see it, there is some party, potluck, etc. where some unpopular dish goes greatly uneaten, or too few folk show up and at the end of the event, dinner, etc. there is a gob of food left and either no place to put it, or no one wants to be bothered with trying to deal with it so the trash is its new home; basically wasted. You may think you will use 100% of what you cook, but that is sometimes hard, more than likely even on one’s best day food goes wasted. How much food will you end up wasting over the Christmas holiday, no need to get fancy, a simple prediction will do.