More Data = Larger Audience?

Does having more data on Facebook Pixel mean my lookalike audience will be larger?

So:

100 add to cart data = 3,000,000 potential audience

Does that mean

200 add to cart data = 6,000,000 potential audience? (lookalike)

Should I try to gather as much data as I can on Facebook Pixel? Or is 100 enough?

Thanks!