BPM is not moving in serato with jog wheel?

 I have DDj- SB2, I am brand new to DDJ but I am curious from my understanding the BPM should change if i turn the jog wheel? I can hear the change but I don't see the BPM change in serato. Again I am new to DJ so maybe its a button I did not press or something. But if you could help that would be great.