Provide an appropriate response.Give four examples of using percent of increase or percent of decrease in your own activities.

Question

What will be an ideal response?

Answer 1

Answers will vary. Possible Answer: 
A sofa was on sale for $50 off the original price of $500.  = 10, so the $50 amount represents a 10% decrease from the original price. The percent of decrease is 10%.

A DVD's price increased from $19.99 to 21.99. 21.99 - 19.99 = 2, so $2 is the amount of increase.  ? 0.100 so the $2 increase was about a 10% increase from the original price. The percent of increase is about 10%.

My math test score on November 1 was 87 points. My math test score on November 8 was 92 points. The amount of increase was 92 - 87 = 5 points.  ? 0.057 so this means I had about a 6% better score on November 8 than on November 1. The percent increase was about 6%.

I used to walk 3.5 miles per day, but now I'm down to only 2 miles per day because I have to study more. 3.5 - 2 = 1.5, so the amount of decrease is 1.5.  ? 0.428, so the 1.5 mile decrease is about a 42.8% decrease from original rate of of 3.5 miles per day. The percent decrease is about 42.8%.