Question

Evita collects baseball cards and is tryingto complete a special edition set of cards.Last month, she collected 30 cards. Thismonth, she collected 18 cards. What is thepercent change in the number of cardscollected from last month to this month?

Answer 1

the percent change in the number of cards collected from last month to this month is:

$\frac{18}{30}\text{ x 100\% }$

that is equivalent to say:

$\frac{18}{30}\text{ x 100\% }=0.6\text{ x 100 = 60 \%}$

the percent change in the number of cards collected from last month to this month is 60%