Adiel buys and sells fresh chicken drumsticks at the open market every Saturday. Shebuys at 13 per kilo and sells at 20 per kilo. She is unsure of what will happen everySaturday and unfortunately, she always thinks the worst might happen. On averageshe sells 250 kilos on a good day, 150 kilos on an average day and 5 kilos on a badday. What will be the net margin if it turns out to be a good day?