The company has signed several training agreements with employees, and the agreed service period is calculated separately according to each training agreement. Because each training agreement is an independent obligation and right, unless otherwise agreed in the agreement.

The calculation principle is: the liquidated damages required by the employer shall not exceed the training expenses that should be shared for the unfulfilled part of the service period.

According to the Labor Contract Law of People's Republic of China (PRC)

Article 22 Where an employing unit provides special training fees and professional technical training for laborers, it may conclude an agreement with the laborers to stipulate the service period.

If the laborer violates the service period agreement, he shall pay liquidated damages to the employer in accordance with the agreement. The amount of liquidated damages shall not exceed the training expenses provided by the employer. The liquidated damages that the employer requires the laborer to pay shall not exceed the training expenses that should be shared for the unfinished part of the service period.

If the employer and the employee agree on the service period, it will not affect the employee's improvement of labor remuneration in accordance with the normal wage adjustment mechanism during the service period.