The decision factors that you will use to make a decision will vary depending on the decision to be made, the situation, and what is important to you. Some of the factors can be objective while others may be very subjective. If you are making an economic decision, then most of the factors, that you would chose would likely be money oriented. If you are making a family decision, then your decision factors would probably be related to feelings and caring.
The bottom line is that you need to chose the factors that are important to you when you are making a decision. That is part of the process.
To see an example of some possible factors to be used in making a decision about a business or occupation go to Example of a Decision Matrix. The factors are shown on the top of the matrix.