Jasmyn and Roselyn compete in a race. At the beginning of the race, Jasmyn runs at a rate of 6 miles per hour, and Roselyn runs at a rate of 6.2 miles per hour. Toward the end of the race, Jasmyn increases her speed to 6.6 miles per hour. If Roselyn increases her speed by the same percent as Jasmyn, how fast is she running at the end of the race?