Thanks Vivant!  you assumed only one employee and 10% margin.  Normally, average mark up in gas station merchandize is 20% (accordng to one gas station owner) and number of employees is 2 to 3. (store is open from 5 am to 11 am).  Still the bottom line is probably the same as you got!  Quoting you: "The best way to avenge such employers is by studying hard, finishing  college, saying good bye to the shitty employers and getting a good professional job or starting your own business " and quoting Katziman: "i do not think anybody can force you to do something that you don’t want"