Calculating Sale Price Discounts (Percentage Decrease)

Calculating Sale Price Discounts (Percentage Decrease).

[Audio] In this presentation we will learn to calculate 3 types of sale decrease changes. You will need a calculator, pencil, paper and a rubber. There will be a written explanation of how to work it out if the speech is too fast..

[Audio] We will need to calculate the new price of a 30% decrease of $5. You will need to multiply the starting value with the percentage change. In doing so it should look like this. With using a calculator, you can find the answer to 5 times 30%, Don't forget to add the percentage symbol when calculating. Now, 5 times 30% equals 1.5, you then must subtract the starting value with the previous answer. It will then be seen as 1.5 subtract 5. Resulting in an answer of 3.5. At the end you should add a 0, since this is a sale price decrease. By adding a 0 it is rounded to look like $3.50. We add zeros after a decimal number to show accuracy. For example, when you are shopping, you want to see one or two decimal numbers so you know how much you are paying..

[Audio] In this next equation we will look at finding a percentage change. We are going to determine what the percentage change is. weather it be increase or decrease. The product is $6.25 and the final price is $5, we can already assume that this will be a decreased percentage because the final price is less then the start value. let's get into it! first we need to subtract the start price with the end price. It will then equal 1.25 You then should divide 1.25 from 6.25 then multiply by 100. we multiply by 100 since 100 is the highest percentage there is. 1.25 divide 6.25 equals 0.2 0.2 times 100 equals 20. therefore, the percentage change is a 20% decrease..

[Audio] In this last example we are to figure out the missing start price. This time we have to multiply the new price with the percentage change. 10 times 50% equals 5. Always remember to add the dollar sign in front as well..