Android Studio. 9.5 Calculate the tip - 2

Contents 0:00 Title 0:09 Add a click listener to the button 0:46 Get the cost of service 2:13 Get tip percentage 3:02 Calculate the tip and round it up 4:18 Format the tip 5:16 Display the tip ... https://www.youtube.com/watch?v=oW2659IWaeM