draw a decision tree

James is the production manager at Dalton Computer Incorporated. The current product is getting old, but is still functional and brings a revenue of $700,000 / year. The company is considering developing a radically improved product this year. If he approves the improvement project, the project has a 40% chance of success. If the project succeeds, he needs to make another decision: produce commercially or shelve it. If the project fails, no further development will be made. If they produce commercially, revenue would be $1,500,000. If they shelve it, there is no revenue obviously. Regardless of its decision, there is a chance that the competitor may introduce a similar product, which will lower its revenue by 40%. When the product is commercialized the chance is 70%. When it is not, the chance is only 30%. The cost of the project is $120,000, and that of commercially producing is $300,000. What is the best decision