Data validation: copy the total figure from column B into the correct analysis column

I am doing a financial analysis spreadsheet and need help please with a formula!

I have my total figures in column B. I have done a Data Validation list in column C and I then have my analysis columns D, E, F, G, H, and I.

My question is once i select from the data validation list. Is there a formula that will copy the total figure from column B into the correct analysis column?

Many Thanks!

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If the terms in the data validation list are the same as the column headers for columns D:I then generally the formula would start =IF(D$1<>$C2,"",your formula)
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