Understanding Percentages and Conversions

This video tutorial covers the percent change formula, including how to calculate percent increase and decrease. It explains converting percentages to decimals and vice versa, and finding the percent of a number. The tutorial also covers converting fractions to decimals and decimals to fractions, with practical examples and word problems to reinforce learning.

What is the percent change when a value increases from 30 to 50?

• 75%

• 66.7%

• 50%

• 33.3%

How do you convert 85% into a decimal?

• 85.0

• 0.085

• 8.5

• 0.85

Tags

CCSS.6.RP.A.3C

What is 30% of 90?

• 27

• 30

• 9

• 18

Convert the fraction 1/4 into a decimal.

• 0.4

• 0.25

• 0.75

• 0.5

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

What is the decimal representation of 0.444...?

• 1/3

• 4/9

• 5/9

• 2/5

Tags

CCSS.6.RP.A.3C

If a laptop costs $200 and the sales tax is 8%, what is the final price?

• $208

• $216

• $220

• $210

Tags

CCSS.6.RP.A.3C

A stock price decreases by 50% and then increases by 50%. What is the overall percent change?

• -50%

• 25%

• -25%

• 0%

Tags

CCSS.6.RP.A.3C

How do you calculate the original price if the final price is $133.75 including a 7% sales tax?

• Add 7%

• Subtract 7%

• Multiply by 1.07

• Divide by 1.07

Tags

CCSS.6.RP.A.3C

What is the final price of a textbook costing $120 after a 10% discount and a 6% sales tax?

• $114.48

• $120

• $112

• $108

Tags

CCSS.6.RP.A.3C

If a value decreases by 10% and then increases by 6%, what is the overall percent change?

• -4%

• -4.6%

• 0%

• 4%

Tags

CCSS.6.RP.A.3C