Commission and Percent of Change

Mary currently weighs 150 pounds. Before her diet she, weighed 180 pounds. What is the percent of change in her weight?

• 17% Decrease
• 17% Increase
• 20% Increase
• 20% Decrease

A school's population increased from 1250 to 2000 students. What was the percent of increase?

• .375%
• .6%
• 37.5%
• 60%

An online auction started the bid on an item at $20. The item sold for $50. What was the percent increase to the nearest percent?

• 150%
• 15%
• 60%
• 17%

You estimate that you sent 135 texts last week, but when you get the bill it was actually 108. What was your percent error?

• 20%
• 25%
• -20%
• -25%

You estimate that 200 people attend a school concert. The actual attendance was 240.   What is the percent error?

• 20%
• -20%
• -16.7%
• 16.7%

In 1999, the price of unleaded fuel was $1.09.  In 2015, the price of unleaded fuel is $1.89. What is the percent change?

• 173% increase
• 73% increase
• 73% decrease
• 27% increase

Sonny works as a furniture salesman and earns a base salary of $350 per week plus 6% commission on sales. This week he sold a total of $3750. How much money did he earn in all?

• $225

• $575

• $3,975

• $4,975

. William earns straight commission as a real-estate agent. Last month his total sales were $971,168. If William earns a 3% rate of commission, what was his gross income last month?

• $2,913

• $2,913,504

• $291,350.04

• $29,135.04

Sophia earns straight commission selling cell phone contracts. Last month she sold 341 cell phone contracts worth a total of $38,192. If Sophia earns a 5% rate of commission, what was her gross income last month?

• $109.60

• $1,909.60

• $17.05

• $1,926.65

Veronika works at Future Shop and earns $10.50/h plus 6% commission on sales. Last week Veronika worked 40 hours. She sold a total of $2050 in merchandise? How rich is Veronika now?

• $2,543.00

• $1,283.00

• $543.00

• $123.00