We will be paying you 200 pounds as compensation for Herbert's death.
Mr. White makes his first wish of 200 pounds on the monkey's paw, and therefore interferes with fate. This Part I scene is important because it represents how the Whites carelessly choose to face the future consequences of this action.
A person from Maw and Meggins tells the news of Herbert's death to Mr. and Mrs. White. He then explains how the company will be paying them 200 pounds as compensation. This Part II scene is important because it shows how the Whites face their consequence of messing with fate.
After Mr. White makes his second wish, a knocking is heard on the door. As the knocking gets louder, Mrs. White happily rushes to open the door. However, Mr. White, terrified of what is behind the door, grabs the monkey's paw to wish for its disappearance. This Part III scene is important because it shows how unlike Mrs. White, Mr. White finally understands the evil of using the monkey's paw.