There is a kind of fabric in Hongli Department Store, which costs 13.55 yuan per meter. Aunt Cao bought 4.4 meters of fabric for 100 yuan. How much should I get back?
宏利百货商店有一种布料，每米售价13.55元，曹阿姨用100元买4.4米这样的布料，应找回多少元？
<gadget id="calculator">13.55 * 4.4</gadget>
<output>59.62</output>

<gadget id="calculator">100 - 59.62</gadget>
<output>40.38</output>

<result>40.38</result>