Arrange 1 person to repair for 2 hours first and then for 6 hours; Other 1 people repaired it for 3 hours first and then for 4 hours.

For the former person, the loss of repairing two cars is * * * (2+2+6)* 100 yuan; After repairing two cars by one person, the loss will be (3+3+4)* 100 yuan.

After the two men finished talking, the economic loss was * * * 2,000 yuan (the lowest).

or

You can also arrange 1 person to repair it for 2 hours and then 4 hours, and 1 person to repair it for 3 hours and then 6 hours.

The economic loss is also 2000 yuan.