The Tornado method options in this panel are:
Percentiles of the variables — Indicates that the tool should test the variables using percentiles of the assumption distributions or percentiles of the decision variable ranges. This is the default.
Deviations (by percentage) — Indicates that the tool should test the variables using small changes that are specified percentages away from the base case. This is the only option available if you selected variables other than assumptions or decision variables. The tool treats discrete assumptions and decision variables as continuous for this second method.