Due to reduction in the bus fare by 15%, the number of passengers in certain route increased by 40%. What will be the percent...

Due to reduction in the bus fare by 15%, the number of passengers in certain route increased by 40%. What will be the percentage of increase in revenue?/বাসের ভাড়া ১৫% কমে যাওয়ায় একটি রুটে পরিবহন ৪০% বেড়ে গেল। শতকরা কত ভাগ রাজস্ব বৃদ্ধি পেল?