Job Recruitment Website - Recruitment portal - How to calculate the number of pieces of sorter?

How to calculate the number of pieces of sorter?

Basic salary+(piece rate × sorting quantity). The piece-rate salary of sorters is the piece-rate unit price × the sorting quantity, and finally the basic salary of sorters. The comprehensive salary required for recruiting sorters is between 4000-8000 yuan. Sorter recruitment requires a good sense of service, good health and hard work.