Hello, thank you for taking the time to post your question!
It wants you to subtract the two values in order to find the difference! That means taking
20,500 – (-10,400)
=20,500 + 10,400
=$30,900
So the difference between the Good Nutrition Eatery’s profit and the Greasy Spoon Diner’s loss is $30,900.
I hope that helps get you moving in the right direction! Feel free to reach out if you have any additional questions beyond that :)
Matt H.
10/08/14