Calculations are among the most important and powerful tools at your disposal in the development of FileMaker Pro solutions. Some people find learning calculations to be an easy task, whereas others can find writing complex calculations to be daunting. Whichever camp you fall into, calculations will enable you to unlock much of the advanced power within FileMaker. We encourage you to stick with it. Our hope is that this chapter and its companion, Chapter 15, “Advanced Calculation Techniques,” will provide you a solid grounding.