I believe it would be reasonable to assume that the combination of crepes and whatever else is sold would work out to be, generously, 15 Euro a customer. By all

I believe it would be reasonable to assume that the combination of crepes and whatever else is sold would work out to be, generously, 15 Euro a customer. By all means feel free to disaggregate customer orders into crepes, tiramisu, and fancy coffee if you think it makes the math better.