Final answer:
Tom must finish a greater percent of chores during the weekend than Kim, as he has completed only 56% compared to Kim's 83%.
Step-by-step explanation:
Tom completed 56% of his weekly chores, and Kim completed 83% out of 100, which is the same as 83%. To determine who needs to finish a greater percent of chores during the weekend, we compare their completed percentages. Since 83% is greater than 56%, Kim has completed a larger percentage of her chores than Tom has. Therefore, Tom must finish a greater percent of chores during the weekend than Kim.