The first thing that you need to do is to find out the number of singles the batter has gained with hits. You will need to do a bit of research in order to find this number. Internet and sports-related websites such as ESPN will be of great assistance to you while looking up the number of singles.
Once you have found out the number of singles gained with hits by the batter, multiply them by 1. Note this value down somewhere.
Next, find out the number of doubles that the batter gained with hits. Again, use whatever means of research are available to you to find this stat out. Multiply this stat by 2. It is recommended that you use a calculator to make the calculation in order to reduce the risk of an error. Be sure to note the value down.
Find out the number of times the batter has gained three bases after slugging the ball and multiply this stat by 3 and record the value. Once again, the use of a calculator is strongly recommended.
Finally, look up the number of home runs hit by the batter and multiply it by 4, using a calculator of course. Write the value down somewhere. Those familiar with baseball already know that a home run refers to a clean hit by the batter that sends the ball flying into the stands and, in some instances, out of the park. This allows the batter to make a complete circuit of bases and score a run for his team.
Once you have multiplied singles by 1, doubles by 2, triples by 3 and homes by 4, add the resultant values to get the total bases.