All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
If you ascertain that such perfumes are alcohol-free or their alcohol has changed into another substance during the process of manufacturing, then there is no harm to use them (perfumes).
For more benefit on the existence of a small percentage of alcohol in food or other substances, please refer to Fataawa 382309, 327754, 299059, 301753, and 81423.
Allah knows best.