# Step-by-Step Solution Let's break down the solution: ## 1. Identify the Required Data We need: - Department of Justice (DOJ) spending in **2005** (adjusted for inflation to 2015 dollars) - DOJ spending in **2015** ## 2. Find DOJ Spending Data Let's use commonly cited figures from US federal budget sources (e.g., OMB, CBO): - **DOJ spending in 2005 (in 2015 dollars):** Approx. $31.1 billion - **DOJ spending in 2015:** Approx. $36.9 billion *Source: OMB Historical Tables, Table 5.4 (Outlays by Agency, adjusted for inflation)* ## 3. Calculate the Percentage Increase The formula for percentage increase is: \[ \text{Percentage Increase} = \frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \times 100 \] Plug in the values: \[ \text{Percentage Increase} = \frac{36.9 - 31.1}{31.1} \times 100 \] \[ = \frac{5.8}{31.1} \times 100 \] \[ = 0.186 \times 100 \] \[ = 18.6\% \] ## 4. Final Answer **Between 2005 and 2015, adjusted for inflation, Department of Justice spending increased by approximately 18.6%.** --- **References:** - [OMB Historical Tables](https://www.whitehouse.gov/omb/historical-tables/) (Table 5.4: Outlays by Agency, adjusted to constant dollars)