Problem getting min value

hi, the problem is the following:

(example)

Indicator1

3

9

5

21

11

I have an indicator that has some values (see the example). Now i want another indicator that for each row calculates the max value, over Indicator1, minor of actual value of indicator1. Se the desired result below.

Indicator1    Indicator2

3                   

9                    5

5                    3

21                    11

11                    9

Thank you for any suggestion