For each origin city, find the percentage of departing flights shorter than 3 hours. For this question, treat flights with NULL actual_time values as longer than 3 hours. (15 points) Name the output columns origin_city and percentage Order by percentage value, ascending. Be careful to handle cities without any flights shorter than 3 hours. We will accept either 0 or NULL as the result for those cities. Report percentages as percentages not decimals (e. g., report 75.25 rather than 0.7525).