Hi all.
Just a quick question, I have some 11 mg strength e liquid and want to add some 54 mg nic to add to it to make it 27 mg strength, if say I had 5 ml of 11mg eliquid how much ice at 54 mg would I have to add to get it to 27 mg.
For the life of me I just can't work it out DOH

. Thanks in advance