Percentages are used frequently throughout daily life, in sales and when giving tips in restaurants. It is unbelievably handy to know exactly how much of a saving you will be securing when dashing around clothing sales, or seeing how much money you can save on a new TV or kitchen appliance. You need to be able to remember the formula behind percentages to know how to enter the information on your calculator.
There are other types of percentages that you can learn to help yourself out in your daily life, such as figuring out what percentage a certain number is of another number. To do this, you need to multiply the first number by 100 and then divide it by the number you're trying to find the first percentage of. An example of this is to imagine that the monthly cost of your home is around £1,400 and your monthly earnings are £3,500, you are taking 40 per cent of your income out on your rent costs.
Finally, if you want to calculate the sale price of an item then you need to use the first method of percentages above and then you must subtract this from the former price of the item.