Different foundations spend different things. Students with a good foundation can sprint in the training school exam. Students with poor foundation will have to learn from the basics, and the time and expenses will increase.
There are other factors that affect the cost, such as regional differences, institutional differences, class differences and so on.
For example:
Ordinary class:1800-3,500 yuan/month, 6 months, 10800-2 1000 yuan;
Excellent classes: 4,000-6,500 yuan/month, 6 months, 24,000-39,000 yuan;
Advanced class: 7000- 12000 yuan/month, 6 months, 42000-72000 yuan.