Write a function named get_percent_even that accepts a list of integers as a parameter and returns the percentage of the integers in the list that are even numbers. For example, if a list a stores [6, 4, 9, 11, 5], then your function should return 40.0 representing 40% even numbers. If the list contains no even elements or is empty, return 0.0. Do not modify the list passed in and round the result to 1 decimal place.