Percentages both ways round: 15% of 80, and what percentage 30 is of 120. With the calculator on screen the whole time. And at the end, the mistake that costs people money: taking 20% off and adding it back does NOT return you to the original price.
► Percentage calculator, free and no sign-up: https://tutoriolab.com/en/percentage-calculator/
All four cases in one: a percentage of a number, what percentage one is of another, increases and discounts. And it shows you where you really land when you undo a discount.
► Free scientific calculator: https://tutoriolab.com/en/calculator/
📄 The written steps, with screenshots: https://tutoriolab.com/en/porcentaje-de-un-numero/
📌 More short tutorials like this: https://tutoriolab.com/en/
#basicMaths #percentOnCalculator #howToCalculatePercentage
