Write your answers using a percent sign (%).
the
1. twelve months ago, donnie bought shares of stock in a biotechnology company for $25 per share
$30 per share, what is the percent of increase in the value of the stock?
2. last month, curtis bought a new mountain bike for $250. in a store advertisement the mountainbike
the percent of decrease in the value of the mountain bike?
3. last week hailey sold 40 raffle tickets for a school fund raiser. this week she sold 72 tickets. what she
number of raffle tickets sold?