It currently supports only €, $ and £. If you want your local currency supported, please give me a shout.
Why even use currencies at all?
If the materials cost ten USD and it makes 100ml of
e-liquid, then the cost is 0.10 USD per ml.
If the materials cost ten Euros and it makes 100ml of
e-liquid, then the cost is 0.10 Euro per ml.
If the materials cost ten Zimbabwean dollars and it makes 100ml of
e-liquid, then the cost is 0.10 Zimbabwean dollars per ml.
If the materials cost ten "Neptunian Dingleberries," and it makes 100ml of e-liquid, then the cost is 0.10 Neptunian Dingleberries per ml.
If the materials cost ten chickens, and it makes 100ml of e-liquid, then the cost is 0.10 chickens per ml.
If the materials cost ten of
anything, and it makes 100ml of e-liquid, then the cost is
still 0.10 "somethings" per ml. It doesn't matter what those "somethings" are; just let them enter "10," and have it spit out a figure of "0.10 per ml." Who cares if they're using dollars, cents, chickens, Neptunian Dingleberries, or anything else? The math is the same, any way you slice it.