Ethical Calculus is a way of deciding what the right thing to do in a particular situation is. It's like doing a cost/benefit analysis, where you weigh the pros and cons of a decision and try to decide which one is the best for everyone involved. For example, if you had to choose between two jobs, you would look at how much money each job pays, how far away from home each job is, how much vacation time each job has, and how much you enjoy each job. You would then analyze the pros and cons of each job in order to decide which one is the best for you!