http://www.v-ecigs.com/tfa-flavor-percentage-recommendations/
It's all on opinion. So their percentage and yours may still vary. Here is another spreadsheet of many different flavors/companies.
I'll second that. Further, after checking one of those flavors I have yet to tame, Taro, it recommends it at 8-10%. I made this at 4% to start and it made me want to barf. Even after months of steeping it is WAY too strong. Makes me wonder with that recommendation if they have even tried some of these mixes, or if they are just throwing out numbers for every flavor listed.
Thanks, will check it out. I just checked in around 87 flavors and am new to DIY. I mixed 900ml of base (70/30, 4ml/mg) and making 5ml testers of each flavor to study profiles over the period of a month. Having a baseline spreadsheet as a starting point is helpful. I know full well that I will be adjusting to my tastes.