Application amounts
How much extrait de parfum should I apply
Use the exact extrait's directions and a restrained first application rather than a universal drop or spray count. A concentrated-style label does not reveal what its applicator delivers or how noticeable the finished fragrance will be.
A HUME Fragrance buying guide

Check the presentation
A dabber and an atomizer are different application systems. Do not use an invented drop-to-spray conversion or copy the amount used for a related EDP.
Choose for your setting
Consider shared-space rules and the presence you want. More concentration does not make maximum application a better way to experience the perfume.
Evaluate before changing
Record the later scent and comfort before adding more as directed. A quieter experience is different from the fragrance being completely absent.
Try this before you buy
Write the exact version, applicator and desired setting before evaluating the first restrained trial.