How do I determine which team is favored to win (Chalk) and the team most likely to lose (Underdog)?

There are two symbols associated with sports betting that will help you determine the chalk and the underdog, these two symbols are – and +. The negative symbol indicates the chalk and the + symbol indicates the underdog. Some cases may show two positives or two negatives. In this event, the team with the lower number is considered the favorite. For example, if one team is -200 and another is -100, the team with the -200 is more of a favorite.