When you switch to ladder view you will see % shown at the top of pink (lay) column & blue (back) column. What do these % represent?
These % represent the share of total money available on both side at that point of time. As you can see from the above snapshot taken from today’s Big Bash league match between Adelaide Strikers v Sydney Sixers 72% of total money is available on the lay (pink column) side for Adelaide Strikers and 28% is on the back (blue) column.
If you see more money on one side then that side is active and punters are dumping money on that side which means that that side is favourite at the moment.
From the example above you can tell that Adelaide Strikers are underdog (less favourite to win) and hence traders are laying (more money on pink side) this team.
If you see almost equal amount on both columns then match is equally balanced.