The negative number is the match favorite. The way it works is if the name listed has a negative number next to it then that means you would have to bet that amount in order to win $100 if that person or team wins. The name with a positive number next to it means you would receive that amount if you bet $100 and that person or team wins.
Tournament Semi-Finals to Crown a New WWE World Heavyweight Champion
Roman Reigns (-290) vs. the field (+210)
Dean Ambrose (+150) vs. the field (-190)
Kevin Owens (+2000) vs. the field (-6000)
Alberto Del Rio (+4000) vs. the field (-16000)
Tournament Semi-Finals to Crown a New WWE World Heavyweight Champion
Roman Reigns (-6000) vs. Alberto Del Rio (+2000)
Tournament Semi-Finals to Crown a New WWE World Heavyweight Champion
Dean Ambrose (-1500) vs. Kevin Owens (+700)
Dolph Ziggler (-350) vs. Tyler Breeze (+250)
WWE Divas Title Match
Charlotte (-1350) vs. Paige (+650)
The Undertaker and Kane (-2000) vs. The Wyatt Family (+1000)