350 yuan is charged for each exam, and 200 yuan is charged for certification after passing the exam. The training fee for logistics engineer is 2 100 yuan, and the training fee for assistant logistics engineer is 1600 yuan. The training fee for junior and senior students in school is charged at a preferential rate with the school certificate issued by the department. The training fee is allowed to fluctuate 10% according to the regional economic development level, but it is charged according to the unified standard in the same region.