please help me made the decision tree by excel or word in 3 branches. please show some details. Thank you, so much

You have written a book that is ready to be published. You have two offers from publishing houses, but you are also considering self-publishing (3 branches). 1. Casual House Publishing has offered you $275,000 guaranteed payment, regardless of the success of the book and will publish and promote the book without passing any of the costs on to you. 2. Walrus House Publishing has offered you no guaranteed payment, but you will receive a portion of the profits after the cost to publish and promote the book. If the book is a success, estimated revenue would be $800,000. If it is a moderate seller, estimated revenue would be $500,000. If it is a flop, estimated revenue would be $150,000. The success on of your book is dependent on how well it is promoted, which adds to the overall cost of publishing the book. The costs and probability associated with Walrus promotion of your book are as follows; success $300,000 (20%), moderate $100,000 (30%), and flop $30,000 (50%). 3. If you choose to self-publish, it will cost you $150,000 to publish and promote your book. If it is a success. Your estimated payout and probabilities would be: success $1,000,000 (20%), moderate $600,000 (30%) and flop|$150,000 (50%)