Suppose that the most popular car dealer in your area sells 12.50 percent of all vehicles

Suppose that the most popular car dealer in your area sells 12.50 percent of all vehicles.
Instructions: Enter your answers as whole numbers.
a. If all other car dealers sell either the same number of vehicles or fewer, what is the largest value that the Herfindahl index could possibly take for car dealers in your area?
b. In that same situation, what would the four-firm concentration ratio be in percent?