This small python script plots relative differences for the bitcoin price. The price itself is plotted with a symlog y-scale, cutoff at 1. For the relative differences, the blue line is the daily value. The third graph shows the smoothed daily relative difference, using the EMA(7) in red, and the even more smoother EMA(21) in blue.
These two plots are like the two above, except that the relative change is taken as its absolute value.