PCBA with < 50 pieces/board cost much more than PCBA with > 50 pieces???? Why
I do calculation from your PCBA specification and I see board with < 50 pieces cost $0.10 per pin and board with > 50 pieces cost $0.01 per pin.
This pricing policy of yours means that a simple board cost more than a complex board.
This is a silly policy. We are looking for a manufacturer to produce thousands of boards for us, so I think we will use a different company because your cost is bad.