Netball leagues rank on points from wins and draws, and many add bonus points — for winning a quarter, or for losing by only a few goals — to keep every game competitive. The base system and the bonuses vary a lot by league, so the table should show the inputs (wins, draws, losses, any bonus) and work the points out from them.
The tiebreaker that sets netball apart is goal percentage: goals for divided by goals against, times 100. A team on 120% has scored 20% more than it conceded. Unlike goal difference, it does not reward a team for simply playing more high-scoring games.