Before revision: When the previous formula is applied on these numerical data the WSM scores for the three alternatives are: Similarly, one gets: Thus, the best alternative (in the maximization case) is alternative A2 (because it has the maximum WSM score which is equal to 22.00).
After revision: When the previous formula is applied on these numerical data the WSM scores for the three choices are: Similarly, one gets: Thus, the best alternative (in the maximization case) is alternative A2 or A3 (because they both haveeither the maximum WSM score which is equal to 22.00).