How many candies are in a jar - packing efficiency and volume?

[nitpick, for now]
Anonymous, be sure to be attentive to the English grammar and style of your sentences when presenting your assumptions and results. English follows a logic and has the opportunities for descriptive style that should match as closely as possible–and not just in a blow-by-blow way–the clarity of what you are thinking about in other symbols. Sometimes it can fight or conceal the points you may think are obvious in the math.
[/nitpick, for now]