Percent Change

Front

Percent Change is a ratio that compares the ____________ to the ____________.

Back

Change amount to Original amount

Answer explanation

Percent Change = Change/Original

Front

The population of fish in my pond went from about 25 to about 32. This will be a percent ___________

Back

Increase

Answer explanation

The values went up, so a percent increase.

Front

Pat's race time went from 12½ mins to 11¾ mins. This will be a percent ....... (Options: increase, decrease)

Back

decrease

Answer explanation

The time went down, so a decrease.

Front

A $175 coat was reduced to $150. Which set-up will find the percent change? Options: 25/175, 25/150, 150/175

Back

25/175

Answer explanation

Change/original

Front

A division was done to find the percent change and the calculator read 0.1963. How should this be written to the nearest whole percent?

Back

20%

Answer explanation

Multiply by 100 and see that 19.63 rounds up to 20

Front

Calculate the percent of change when you use a $5 coupon and pay a sale price of $40 for shoes.

Back

5/45

Answer explanation

If $40 is the sale price, then $45 was the original price, so 5/45

Front

In 2019, the number of 7th grade students was 48. In 2020, there are 36 8th grade students. Calculate the percent decrease.

Back

25%

Answer explanation

The difference is 12. 12/48 simplifies to 1/4 which is 25%

Front

Does 40 increasing by 10 to 50 and 50 reducing by 10 to 40 result in the same percent change in each direction?

Back

No, because 10/40 is different to 10/50

Answer explanation

when the change is the same, but the originals are different, then the percent is different.

Front

The number of school hours is 6.5. If this were to change to 7, what would the percent increase be?

Back

7.7%

Answer explanation

0.0769 = 7.69% which rounds to 7.7%

Front

In one bag of skittles, there were 10 red ones. In the next bag there were only 8 red ones. What is this as a percent decrease?

Back

20%

Answer explanation

2/10 = 20%