What is the sequence of 500 100 20?

The sequence 500, 100, 20 appears to be decreasing, with each number decreasing by a factor related to its position. Specifically, the first number (500) is divided by 5 to get the second number (100), and the second number (100) is divided by 5 to get the third number (20). This pattern suggests the sequence involves division by 5 at each step.