The current tempo (at the playhead position) is always displayed on the Transport bar, even if you’re using programmed tempo changes or external synchronization.
Drag the Tempo display vertically.
Double-click the Tempo display, type in a new value, then press Return.
Open Display preferences by doing one of the following:
Choose Logic Pro > Preferences > Display (or use the Open Display Preferences key command).
Click the Preferences button in the Arrange toolbar, then choose Display from the pop-up menu.
Choose an option from the Display Tempo As pop-up menu in the General pane.