Half of $1$ percent written as a decimal is

### Concept & Formula The term "percent" translates to "per one hundred". To convert a percentage to a decimal, divide the numerical value by 100, which effectively shifts the decimal point two places to the left. $$ \text{Decimal} = \frac{\text{Percentage}}{100} $$ ### Step-by-Step Solution * **Given:** The value requested is "Half of $1$ percent". * **Calculation:** First, write "Half of $1$ percent" as a numerical percentage. $$ 0.5\% $$ * Convert this percentage to a decimal by dividing by 100. $$ \frac{0.5}{100} $$ $$ = 0.005 $$ ### Exam Strategy & Shortcut Keep standard conversions in mind: $1\% = 0.01$. Half of that value is simply $0.01 \div 2 = 0.005$. This logical step can be done instantly in your head without writing out the division. ### Common Pitfall Misinterpreting "Half of 1 percent" as just "Half" (which is $50\%$ or $0.5$) or "Half a tenth" (which is $5\%$ or $0.05$). Pay close attention to the word "percent" to ensure you divide the half by 100. ### Final Answer **Therefore, the correct answer is 0.005.**