Find a matching value in column then in row

Question

This is difficult to explain in the question title. I have a multi-page Excel file that I need to do a look up in. Sheet1 has the values that I\'m looking for and <

Answer 1

To get the ABS minimum difference,

=AGGREGATE(15, 6, ABS(J2-INDEX(Sheet11!D:N, MATCH(E2, Sheet11!A:A, 0), 0)), 1)

To get CT-01 for RD190A and CT-03 for RD190C,

=INDEX(Sheet11!$1:$1, AGGREGATE(15, 6, COLUMN(D:N)/(ABS(J2-INDEX(Sheet11!D:N, MATCH(E2, Sheet11!A:A, 0), 0))=AGGREGATE(15, 6, ABS(J2-INDEX(Sheet11!D:N, MATCH(E2, Sheet11!A:A, 0), 0)), 1)), 1))

First get the smallest ABS (i.e. absolute value) difference in pricing. Next use that figure in a similar wrapping function to retrieve the CT-xx number.