The decision tree is related to the cost-benefit
Executing the Method
For each alternative, create a new branch. More complex trees can also have child options.
Assign Probabilities and Values
In this example, there is a 50% change that option A will be a success (returning a benefit of 100.000) and a 50% chance that it will fail (returning only a benefit of 20.000).
Calculate Expected Value
The expected value for option A is 0.5*100.000 + 0.5* 20.000 = 60.000. In this case, option A is more attractive than option B.