COMPRESSION RATIO

There are two popular ways of representing a compression ratio as a
percentage; either as the size of the input divided by the size of the
output (times 100), or as 100% minus the aforementioned ratio.

LZX uses the former method, since it is more intuitive; if a file has
a compression ratio of 35%, then it was compressed to 35% of its
original size.  A program which didn't compress at all will have a
compression ratio of 100%.

Note that programs such as LZ and LhA use the second type of ratio, so a
file which compressed to 35% of its original size would be represented
by a compression ratio of 65%.