In the video, a person is holding a smartphone in their hand and using the calculator app to perform a mathematical calculation. The person is pressing the buttons on the calculator app to add the numbers 5, 0, 0, 2, 5, 0, 1, 95, and 2, 95. The screen of the calculator app is visible, showing the numbers being added. The person's hand is steady, and they appear to be focused on the calculation. The background is blurred, but it seems to be an indoor setting with shelves and products.