Percent Change

What is the correct formula to use for percent change?

Tags

CCSS.6.RP.A.3C

When Bobby was exercising his hear rate went from 79 beats per minute to 98 beats per minute. Approximately, what was the percent of increase?

• Approximately 24% increase

• Approximately 12% increase

• Approximately 17% increase

• Approximately 19% increase

Tags

CCSS.6.RP.A.3C

The boiling point of water is lower at higher altitudes. Water boils at 212 degrees at sea level and 193.7 degrees at 10,000 feet. What is the percent of decrease in the temperatures, to the nearest tenth of a percent?

• 5.2%
• 12.4%
• 10.1%
• 8.6%

Tags

CCSS.6.RP.A.3C