Current behaviour: You can enter price/l or the full price and the other data is automatically calculated
My Usage: I always only enter full price, I don't want to enter price/l ...
Assumption: I think most users will only use one of them, some will enter full price, some only price/l. Normally they won't change their behaviour.
Proposal: Make an option in settings to choose between: full price, price/l, both.
If only one is choosen the other item will still be calculated, but disabled and also jumped over if you send "enter". It would be a little bit faster for those which enter "full price", as price/l will be jumped over and avoid errors (Today I was accidentially entering the full price in price/l field)
Customer support service by UserEcho