If statement or Looping

[Luis_B]

Hello guys,

I'm trying to write a code that can search the criteria from two different columns (Column A and B) and once both match, then subtract the value of either column F or column G by the value given on another sheet.

The values of column F or G would be subtracted by the value given on another sheets and whether it is first class seat or economy seat.

Any help would be appreciated

Thank you,

 

[Joe4]

Please show the data on your other sheet that would relate to this, and show your desired result.
Also, be sure to include the name of both sheets.
And when exactly do you want this subtraction to occur? What is the "trigger" that should cause that to happen?