per
preposition
ukstrong /pɜːr/ ukweak /pər/ usused when talking about prices, rates, etc. to mean the amount for each one:
per day/hour/month, etc. Property prices in the area have increased by an average of 20% per year over the last three years.
The group posted earnings per share of 55.4p in the second quarter.
per head/person Tickets cost $50 per person.
per litre/million/minute
as per sth formal
according to something:
as per your instructions/letter/request The policy was not terminated as per your request.