1. The price of a computer system at an electronics store is \$1099. Determine the percent of change in price if the computer system sold for \$1349 a month earlier. A. 18.5% increase B. 22.7% decrease C. 22.7% increase D. 18.5% decrease Hint 2. During the first half of the year there were 54 students in the school's bicycling club. In the second half of the year the club had 68 members. Find the percent of increase in club membership to the nearest whole percent. A. 21% B. 14% C. 26% D. 34% Hint 3. At Central High School, the number of sophomores who rode the school bus decreased from 212 at the beginning of the school year to 94 at the end of the school year. Find the percent decrease for sophomores riding the school bus. A. 125.50% B. 79.70% C. 55.70% D. 44.30% Hint 4. In 1990, an automobile dealership sold a certain model car for \$14,649. In 2000, they sold the same model car for \$23,609. Find the percent increase. A. 24.60% B. 62.00% C. 61.20% D. 38.00% Hint 5. In May, there were 157 people living in Kristin's neighborhood. By August, the population had increased 21%. How many people were in Kristin's neighborhood by August? A. 190 B. 33 C. 330 D. 1900 Hint