On an audio compact disc {CD}, digital bits of information are encoded sequentially along a spiral path. Each hit occupies about DEB pm. A CD player's readout laser scans along the spiral's sequence of hits at a constant speed of about 1.2 mfs as the CD spins. numberl of hits actualhr read per second by a CD player. The excess number of bits [2 N Nu) is needed for encoding and error-correction. What percentage of the bits on a CD are dedicated to encoding and error-correction? Express your answer using two significant figures