How much silver costs per pound, varies greatly. Right now, January 19th, 2013, it is around $430.72. This averages out to $26.92 per ounce. This can vary from hour to hour.
1 Additional Answer
The price of silver can change from time to time. If you bought your silver in the start of February in 2010 then you would pay 16.60$ per ounce. Now just multiply that by 16 and you will get 265.60 per pound. Now remember all through the day it could change.