A certain dealer in Toronto has Winchchester 115 grain on sale today. Although I generally buy Federal American Eagle 124 grain in 1000 bulk, this is a good deal.With regards to Winchester 115 grain FMJ 9mm ammunition prices in Canada, $14.99 to $16.99 per box of 50, depending on the model. The cheaper one accounts for the bulk of their inventory. You can convert that to US dollars if you wish.
Edit to add: They won't ship to the US, so the above is for comparison purposes only.
9mm-white-box-fmj-115-grain-box-of-50-$13.49 or $129.90 for 500.