6.3 HW 12/13

Front

What is the formula to calculate the percentage of a number?

Back

Percentage = (Part / Whole) × 100

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100.

Front

What is 20% of 45?

Back

9

Front

How do you find the percent change?

Back

Percent Change = ((New Value - Old Value) / Old Value) × 100

Front

Ms Thomas bought stock for $15 a share and sold it at $20 a share. What is the percent change?

Back

Increase of 33.3%.

Front

How do you convert a decimal to a percentage?

Back

Multiply the decimal by 100.

Front

Change 32% into a decimal.

Back

.32

Front

Change 1.17 into a percent.

Back

117%.

Front

What is the approximate percent increase if Jason's salary changed from $150 to $175?

Back

16.7%.

Front

What does it mean if a value increases by 100%?

Back

The value has doubled.