I have some juice that is lower nicotine that I like. It is 12mg. I want to raise it to 16mg. I didn't do that well in math so apologies if this is a dumb question. I just want to double check so I don't make myself ill. Say I have 10ml of the 12mg juice - being I want to increase by about 4mg with 100mg nicotine can I simply use an ejuice calculator and pretend I'm making a recipe for 10ml of 4mg nicotine and then add that amount the calculator gives me to the 10ml of store juice? I don't know why this is screwing with my brain so much. When I'm figuring out recipes and all that regular DIY stuff the numbers make perfect sense to me.