Maybe like a drop every hour or 3. If there was no oil leak before the oil change , then there is a possibility of wrong repair done at the workshop. Generally, for changing oil , the oil pan need not be touched at all, except for the oil drain plug. If the vehicle underbody is checked on a two post lift, then the leaking area could be spotted. Another reason could be that the plug has not been threaded properly.
If that is the problem, the plug can be adjusted so that it fits properly. In other cases, it may also need to be replaced. Most commonly, the oil leaks due to misaligne loose, or worn out oil filter. Oil Leak After Oil Change.
Fixing very very slow oil drain-plug leak.
Go look at a new drain plug at the dealer. Dealer drain plugs can be very competitively priced and dealer plugs and can be much higher quality than aftermarket plugs.