Select highest numbers and divide by 2
I have 5 different number fields. I need to select the two fields with the highest two numbers, add those two highest numbers and divide the sum by 2 to get an average. I need that average to go to a different emply field. Please help my knowledge of FM is limited.
I did not mention that each one of the five numbers is the sum of 4 numbers in different fields. I need to add the two highest sums and divide them by two. Sorry I was not clear on this. Can you help me?