DIY adding nic to 0mg juice

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Hi all... in Australia nic juice is illegal to buy so imported 100 % pg base as suggested to me by local supplier. I want to mix this with my 0 mg juice (30ml) to achieve 6mg juice.
At this stage i dont want to add any extra vg or pg other than the pure nic juice as my 0mg juice is 80vg/20pg - a good ratio for me i think.
Would i be right if i said 1.8ml based on:
30ml x 0.06% =1.8ml
Attempted this with juice calculator but not really working for me.... any help would be appreciated

DIY adding nic to 0mg juice