Need excel macro:
1. Name G1 "Calc"
2. Take Column A, each row (A2:A250) and try match each row content with content in column C rows (C2:C1500)
3. If match successfully do math for each row based on column A, and put result in Column G - correct row.
ex: A5 = A56 -> B5 - E56 -> result in G5