Respuesta :

Given:

a.) The price of an item has dropped to $63 today.

b.) Yesterday it was $140.

For us to be able to determine the percentage decrease, we will be using the following formula:

[tex]\text{ Percentage Decrease = }\frac{\text{ Original Price - Present Price}}{\text{ Original Price}}\text{ x 100}[/tex]

We get,

Original Price = $140

Present Price = $63

[tex]\text{ Percentage Decrease = }\frac{\text{ Original Price - Present Price}}{\text{ Original Price}}\text{ x 100}[/tex][tex]\text{ = }\frac{\text{ 140 - 63}}{\text{ 140}}\text{ X 100}[/tex][tex]\text{ = }\frac{77}{140}\text{ X 100}[/tex][tex]\text{ = }0.55\text{ x 100}[/tex][tex]\text{Percentage Decrease = }55\text{\%}[/tex]

Therefore, the decrease of the price in percentage is 55%.

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