The product of two factors is 21.12, if one factor is enlarged by 100 times and the other factor is reduced by 10 times, what is the product
两个因数的积是21.12，如果一个因数扩大100倍，另一个因数缩小10倍，那么积是多少
<gadget id="calculator">21.12 * 10</gadget>
<output>211.2</output>

<result>211.2</result>