Question

2Last year, Littlefield MiddleSchool had 640 students. Thisyear,it has 480 students. Whatis the percent of decrease

Answer 1

Step 1

Write out all values

Old value = 640

New value = 480

`\begin{gathered} \text{Percentage decrease = }\frac{Old\text{ value - New value}}{\text{old value}}\text{ x 100} \\ \text{ = }\frac{640\text{ - 480}}{640\text{ }}\text{ x 100\%} \\ \text{ = }(160)/(640)\text{ x 100\%} \\ \text{ = }\frac{160\text{ x 100}}{640} \\ \text{ = }(16000)/(640) \\ =\text{ 25\%} \end{gathered}`

You