Question

Andrew had a collection of 300 baseball cards at the beginning of the summer After the summer Andrew had traded some of his baseball cards and know he only has 213 baseball cards What percent is the decrease of his baseball cards collected

Answer 1

The percentage decrease is 29%

Explanation:

Given

`Initial = 300`

`Final = 213`

Required

Determine the percentage decrease

This is calculated as thus:

`\%Percentage = (|Final - Initial |)/(Initial) * 100\%`

Substitute values for Final and Initial

`\%Percentage = (|213 - 300|)/(300) * 100\%`

`\%Percentage = (|-87|)/(300) * 100\%`

Get absolute value of -87

`\%Percentage = (87)/(300) * 100\%`

`\%Percentage = (87* 100\%)/(300)`

`\%Percentage = (8700\%)/(300)`

`\%Percentage = 29\%`

Hence, the percentage decrease is 29%