The easy way to mix with % is to know how much 1% is for each size bottle and then multiplying with the % you want to add... When making 10ml 0,1ml aroma is 1% so if you want to add 20% aroma its just 0,1x20...
For a 30ml bottle 1% would be 0,3ml so 0,3x20
Its very simple, now mix away
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Hades 0,9 aqua/0,3 hades dripper
Hades 1,1 russian/0,4 stiletto
M16 helio 0,29
Galileo aqua 0,8
Bolt carto tank
Vamo vivi/protank
Kts+ igo-w 0,7
For a 30ml bottle 1% would be 0,3ml so 0,3x20
Its very simple, now mix away
__________________________
Hades 0,9 aqua/0,3 hades dripper
Hades 1,1 russian/0,4 stiletto
M16 helio 0,29
Galileo aqua 0,8
Bolt carto tank
Vamo vivi/protank
Kts+ igo-w 0,7