=COUNTA(INDIRECT(ADDRESS(1, MATCH("ID", A1:1, 0), 4)&":"&
SUBSTITUTE(ADDRESS(1, MATCH("ID", A1:1, 0), 4), 1, )))
=SUM(INDIRECT(ADDRESS(1, MATCH("PROFIT", A1:1, 0), 4)&":"&
SUBSTITUTE(ADDRESS(1, MATCH("PROFIT", A1:1, 0), 4), 1, )))
=AVERAGE(INDIRECT(ADDRESS(1, MATCH("COST", A1:1, 0), 4)&":"&
SUBSTITUTE(ADDRESS(1, MATCH("COST", A1:1, 0), 4), 1, )))