The logic behind this is the law of attraction (most of you know so i dont need to go into detail)
Lets say there are 1000000 people that bought tickets. Lets say EVERYONE concentrated (and no one really does, just buys them and does a little hoping) So if every one did concentrate on this, the numbers are being "pulled" in many directions. If we have 7 commited people, it will come to us because we have the strongest concentration put together. Like a world, or local tugawar. The rest will cancel eachother out for the most part and we will win, since we have more people.
Sorry to say it to you but it's not so easy.
First: you lack a proper magical link (as in all operations of this type).
Second: it is not said that all people in your group have a True Will that enables them to win money (i.e. if the operation is not in accordance with their Will it is very difficult to make it work properly, above all if there's not a magical link, as you have not). On the contrary it is much probable that some of them are totally contrary (either if unconsciously) to it, and these will oppose much more than you consciously adhere to the operation.
(As an example: Crowley was very good at obtaining many things - especially with the IX degree OTO formula - but almost all the operations concerning money for him never worked. Either if he could obtain money then something would happen, sometimes immediately after, when he did lost even more than he acquired. He did these operations many times in desperate need and this justified them somewhat as a way to continue his work, however when he was young he made an Oath to never use the Great Work to have personal gains by it and his True Will was completely opposed to these things - he called them "black magick". So he could never have them work, either if he was very experienced on obtaining all sort of things when in accordance with his Will).
Third: concentration is not enough. To make work these things (with a proper magical link) you need also a force proper for the operation. You can concentrate how much you want but if the force "putting to earth" the thing is not there nothing will come out of it.
Fourth: tied with second - those with their will contrary will have the force, link and determination. I.e. even a single one of them to oppose unconsciously will be so much more "powerful" than either 100 of you consciously trying to achieve it (and that either if you did know properly what to do, a thing you clearly don't know). This, btw, comprehends now also others here that know what you are doing, since you posted it in a forum that everyone can read.
As a general advice then: when you search for money it's never wise to restrict the operation to a definite setting, just because you lack a proper magical link. So restricting an operation for money to get it via lottery and that's all is a sure way to make you not obtain anything. Much better to simply try a "money operation" and have the "fate" decide how you get it (supposing naturally you know how to do a thing as that and the conditions of before met).
Many people seem to be of the opinion that "magic" lacks laws to adhere to as with every other thing in nature.