Who knows

The basic salary is 20,843; after deductions for labor and health insurance, it’s a little over 18,000. Working hours are 12:50 a.m. to 10:00 p.m.; 8 days off per month, with days off scheduled according to the shift roster.

Monthly sales bonus: 2,000

By the way,

under the Labor Standards Act, the basic salary is 24,000.

Heh.