How much do baking powder cost?
Where I live, I think it's about $2.50.
It's cheap. Couple bucks
From Tesco it costs 99p for 170g but you can get it for $2.50 xo
The cost of baking powder ranges from $4.58 to $21.99. The price differs from one brand to the other and also the packaging size is a determinant factor. Check out http://www.amazon.com/Best-Sellers-Grocery-Gourmet-Food-Baking-Powder/zgbs/grocery/16317381.
I am living in India we get it around 50 gm for Rs 30 which is equivalent of $ 0.5 for 50 gms.