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In column I of your example you might use this function.
=VLOOKUP($A3,$E$3:$G$64,2,FALSE)
VLOOKUP looks for the value found in A3 in the first column of the range E3:G64. From the row in which an exact match is found (FALSE means "exact") the value in column 2 of the search range will be returned. The second column of E3:G64 is column F. If you want the AUD value, change this number to 3.
If no match is found an #N/A error occurs, and this error will be propagated to any total you try to draw from column I. In order to avoid that you can embed the above formula in an ISERROR() function.
=IFERROR(VLOOKUP($A3+100,$E$3:$G$64,2,FALSE),"Not found")
Excel's SUM() function will interpret "not found" as 0 and you will have a total at the bottom which looks OK but might be wrong. So, you must decide whether you want to show a wrong total or no total at all - in case of error only.