I am after some help finding a formula or vbscript or something that can run through a range of numbers in a column, and give me the highest difference between to cells...

ie...

12

13

17

9

15

18

8

As you can see the difference between 12 & 13 is 1, 13 & 17 is 4, 17 & 9 is 8, 9 & 15 is 6, 15 & 18 is 3, 18 & 8 is 10.

I need a formula that can do this, and in ONE cell, give me the HIGHEST difference. in my example the ONE cell answer would be 10 as 10 was the biggest difference.

IS this possible? if so I would be so grateful of your help.

Many thanks in advance...

Christian.