I have all those figures there on my spreadsheet. In NZ it is least 2x than the USA prices. For a complete set of chemistry is $76US. So for this 6 months, powder developers does 6 rolls according to Ilford or 13 rolls if a more diluted solution is used. Maybe 6 rolls for the 6 months. How much is b/w film, I import from the USA. $6US a roll? 6+76 = 82/6rolls = $13US.