According to Forbes:
In 2016 (pre-acquisition data):
-
EMC had 72,000 employees: https://www.forbes.com/companies/emc/
-
Dell had 140,000 (source does not say if this includes ex-EMC employees, I would guess not): https://www.forbes.com/companies/dell/
Total: 212,000 employees.
In a recent meeting, we were told that Dell-EMC's total workforce is currently about 110,000 employees.
No matter how one may look at it, the effective workforce reduction ranges anywhere between 30,000 and 110,000 employees since since the acquisition.