38.18 decreased by 0.0825% = 38.1485015.
Step 1: Find 0.0825 percent of 38.18.
$$ 0.0825 \% \text{ of } 38.18 = 0.000825 \cdot{ 38.18 } = \color{blue}{ 0.0314985 }$$Step 2: Decrease original amount 38.18 by 0.0314985.
$$ 38.18 - 0.0314985 = 38.1485015.$$