Hi,

I need to calculate the total value based on the lookup value, but not sure
what function to use. The lookup ref data is from row 2 to 7. The calculated
data is B10 which equal 36 (2+34) (sum of column B in row 2 & 6). Thanks

Here's the sample data.
A B C D E
1 WC 2/1 2/2 2/3 2/4
2 100 2 30 11 10
3 150 21 24 15 13
4 205 5 32 14 12
5 300 25 30 11 10
6 100 34 10 21 40
7 150 14 30 11 43
8
9
10 100 36
11 150
12 205
13 300

NOTE: the left most value is just a row#, not actual data for this example
purpose.