I maybe long in the tooth here or just not getting it or the app needs work.
For a calculator you need it to auto adjust the pg and vg according to the other ingredients inputted.
For example when you add nic and select its carrier ie pg or vg it should deduct the ammounts added from the respective base ingredients so that 100% is continually maintained.
Same with flavours.
This just allows the overall percentage to exceed 100%.
I dont know if I get you, but let me try to explain:
If you switch on the "mix switch", the automatic mode will turn on. In this mode:
* You just have to set your flavors percents and no other thing. If for a flavor you set as a base other than pg or vg, and for example, you define as target pg 50/50 vg, then it will exced for the percent of that flavor.
If the switch "mix" is off then is the dynamic mode active. There you set your targets at the end, with the flavors established:
* First you set your flavors.
* The the desired nicotine (if a flavor have nicotine then it will calculate the nicotine that still need it)
* The the desired Vg/Pg (finally the vg/pg still need it, it will be calculated in base the actual flavoring and nicotine)
For your desired nicotine, vg, and pg you will use the text box that will appear down left for set the targets.