Here is what I have as a function for cell J8, for example:

=7.75*SUMPRODUCT(--NOT(ISNA(MATCH(E8:H8,
{"LA";"PD";"EA";"PDX";"MC";"V";"PR"},0))))

But, I need to include cell I8 into the calculation, but it would be
multiplied by 4.75, instead of 7.75. What I'm doing, basically, is to
determine the occurences of 7 different text strings in cells E8:I8,
but I8 needs to be multiplied by 4.75, rather than 7.75. There may be
a simple answer, but I don't know how. Thanks.