Percents Less Than 1%

Be careful with percents less than 1%. Handle them the same way (move exactly 2 places).

Example: 0.3% = 0.003

By Jim Olsen, W.I.U.#P20

Recall: To change a percent to a decimal, move the decimal point two places to the left (because percent means divided by 100)

Change each to a decimal:1. .1%

2. .08%

3. 0.24%

.1% .001

.08% .0008

0.24% .0024

Recall: To change a percent to a fraction, change to a decimal and then read it to make it a fraction.

Change each to a fraction:1. .1%

2. .08%

3. 0.24%

1.1% .001

1000

8 2 1.08% .0008

10000 2500 1250

24 30.24% .0024

10000 1250

Examples:

1. If the price of a share of RST stock started the day at$53.20 and went up $0.13,what is the percent increase?

2. If the human body had 10 pints of blood and .08% of the blood is alcohol (the legal level of intoxication), how much alcohol is in the blood?

2. If Joseph has $2,000,000 invested and 0.5% is invested in Dell Computers, how much is invested in Dell Computers?

.0008*10 .008 pints

.5% of 2,000,000 .005 2,000,000 $10,000

.13.002443 0.24%

53.20

Closing Notes

Remember

Handle percents less than 1% the same way as ‘bigger’ percents.

Move the decimal point two places.

#P20