\[\frac{4}{1000}\]

1
To convert the fraction to a decimal, divide the numerator by the denominator.
4÷10004\div 1000

2
Use long division.
0.0040.004

3
To convert to a percent, multiply the decimal by 100.
0.004×100=0.40.004\times 100=0.4

4
Add the percent sign.
0.4%0.4\%

Done

Decimal Form: 0.004

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