Last year, 20,820 people attended a kite festival. This year, 19779 people attended it. If attendance continues to decrease by the same percent each year, how many people can be expected to attend the

Last year, 20,820 people attended a kite festival. This year, 19779 people attended it. If attendance continues to decrease by the same percent each year, how many people can be expected to attend the kite festival next year? Explain your reasoning.