Give the step-by-step reasoning process and then the final answer. The Super Soup franchise had 23 stores in 2018. In 2019, the business opened 5 new stores, but closed the 2 that performed the worst. And in 2020, they opened 10 new stores, closing the 6 worst-performing. How many stores did Super Soup have at the end of 2020?
The number of stores opened is 5 + 10 = 15. The number closed is 2 + 6 = 8. There were 23 + 15 - 8 = 30 stores open.
The final answer: 30.