Picture
http://www.acs.org/
1943- 400 million units produced
July 1943- $20 per dose​
August 1945- 650 billion​ distributed each month
​​1946- $0.55 per dose
​In 1945, 200 billion units per month was the domestic consumption in other countries and it was estimated over 300 billion units would be the monthly demand for dosage of penicillin. 
In 1945, the price declined over 95%. Production increased 1,610 times in 24 months. ​
Picture
http://www.iwm.org.uk/
An advertisement from the 1940s about the mass production of penicillin.
www.youtube.com/watch?v=UJ6KTKVxkcM