Sum and SumIf together

Hi all, I'm trying to sum four cells in second row (K2, L2, M2 & N2).
Cell K2 worth 4 times, L3 worth 3 times, M2 worth 2 times, N2 worth 1 time.

Then use SumIf depend on what text is in the target cell (H2).
"High" value is multiply by 3, "Medium" multiply by 2, "Low" multiply by 1.

Only half way through formula is working.

This is the formula I'm using below and have attached sample.

=((K2*4)+(L2*3)+(M2*2)+(N2*1))*(SUMIF(H2,"High",L17)+SUMIF(H2,"Medium",L18)+SUMIF(H2,"Low",L19))

Thanks in advance.

If I understand you correctly, you want to sum your result based on the priority value? If so, give this formula a try. Using INDEX/MATCH you can first locate the index position based on a lookup value then reference the corresponded value based on a different column.
=((K2*4)+(L2*3)+(M2*2)+(N2*1))*INDEX($L$17:$L$19,MATCH(H2,$K$17:$K$19,0))

Perfect JieJenn, thank you for your help.
I did not know that Index and match can do this trick.