Unfortunately, PLM Software cost is quote based and varies depending on which product vendor you choose.
Vendors have made it non-transparent and complicated, sorry to say. Cost depends on modules and packages you choose.
Siemens Teamcenter, PTC Windchill and Dassault Systems 3DExperience are the three major providers.
The license could be perpetual, meaning you own it forever or subscription based (pay per year).In perpetual license you pay a fixed cost per number of license and you pay an annual maintenance cost for getting new product updates and features.
Considering everything, for just guidance we can assume that typical cost could be over 400 USD per user per year for basic PLM modules. There are also many cheaper options available in the market from 100 USD if you do not want top three or choose different bundle. There is also many SAAS PLM options available in market. Some might be specialized for your business for example lot of apparel PLM vendors provide specialized software for fashion industry. PLM Software is costly, and many companies are spending millions per year on annual maintenance making it even more important to implement properly and make full use of it.