Another way to look at it and so you can do the math yourself:
A component of my recipe has 5% flavor brand "A"
B component of my recipe has 5% flavor brand "B"
(Lets throw you a curve ball here)
We are going to mix 4 parts A with 6 parts B for a 10ml batch and call it "C".
10 (ml batch size) divided by 10 parts (4A + 6B) = 1ml per part.
Component A total % in batch = 2% (5% times 4 (mls of the total recipe) divided by 10 (total recipe parts)).
Component B total % = in batch = 3% (5% times 6 (mls of the total recipe) divided by 10 (total recipe parts)).
Batch C total flavor % = A% total + B% total = 5% total batch flavor.
Percent of flavor times size of component divided by total batch size gives you end (individual) flavor %
The same holds true for mixed nicotine mg %s
Same example as above but:
A component of my recipe has 5% flavor brand x and is 20mg nic.
B component of my recipe has 5% flavor brand y and is 10mg nic.
Since flavor % has been solved, let's move on to nic mg.
4 parts of my recipe is 20mg nic (component A)
6 parts of my recipe is 10mg nic (component B)
Component A Nic % = 8mg (The portion from A adds 8mg to total batch, 20mg times 4 parts = 80, divided by 10ml (batch size) = 8mg.
Component B Nic % = 6mg (The portion from B adds 6mg to total batch, 10mg times 6 parts = 60, divided by 10ml (batch size) = 6mg.
Batch C total Nic % = 14mg (Portion A 8mg, plus portion B 6mg = 14mg total nic in Batch C)
Batch C contains
14mg nic,
5% total flavor consisting of 2% flavor A and 3% flavor B.
Hopefully that is understandable enough to follow.
In general, the percent in a part divided by the whole = percent of the part in the whole.
