How to use a betting calculator for Major League Baseball?

Because, betting on baseball is the simplest form of sports betting, you really don’t need a calculator for a straight up bet. You are either betting the favorite at minus odds or the underdog with plus odds. For example, (based a $100 bet) if you are taking the favorite at -130, you will either win $100 or lose $130. If you take the underdog at +120 you will either lose $100 or win $120.