Approximately how many meat balls does this make? I cook for a crowd, so probably need to multiply it, but how many times?

Thanks a ton for the rapid response. I'll be making these!

It really depends on the size of meatballs you roll. I try to roll them relatively small, so I count on the 500 g (or 1 lb) serving 4 people for a main course dish. When I make 500 g, I roll them into about 50 meatballs.