Is it normal to mentally calculate a business's income?
As I walk in a store, I try to estimate how many customers walk in a day, what the average person buys, what profit is made from the sale, how much the rent and taxes cost, and divide it by how many people work there to guess how much salary each of them make.
I usually make this calculation in my head in about 20 seconds.
Is this a fun thing to think about or straight up wierd.