How to quote the cost of software development?

Software development price = development workload × development cost/person/month. Explain: Simply put, it is to estimate the working hours first, and then calculate according to the person-day. For example, a project needs 30 days of working hours (one person develops), and Shanghai basically calculates it as 2000 per day, that is, the quotation is 30*2000=6W. Different places will have different differences according to the specific labor costs.