2. (8 points) A three-digit number, when a decimal point is added at the appropriate position, becomes a decimal number which is 201.6 less than the original three-digit number; then the original three-digit number is $\qquad$ .
【Solution】Solve: $201.6 \div(10-1)$
$$
\begin{array}{l}
=201.6 \div 9 \\
=22.4 \\
22.4 \times 10=224,
\end{array}
$$

Answer: The three-digit number is 224.
Therefore, the answer is: 224.