To find 45% of 85, you can use the formula:
\[ \text{Percentage} \times \text{Total} = \text{Result} \]
In this case, the percentage is 0.45 (which is 45% expressed as a decimal), and the total is 85.
So, the calculation is:
\[ 0.45 \times 85 = 38.25 \]
Therefore, 45% of 85 is 38.25.