Find cell address reference for index and match to create use OFFSET for next column

[v.rodgers]

I want to use the cell address reference for index and match to create an OFFSET formula to obtain the cell value in the next column for a calculation. Please see attached spreadsheet, cell references are filled "yellow".

=CELL("address",INDEX($Q$14:$Z$30,MATCH($C$4,$H$14:$H$30,0),1))

Tried various formula and can't work it out.

Thanks