Subtract the difference between 19.8 and 5.6 from 100, and multiply by 0.15 to get what?
100减去19.8与5.6的差，再乘0.15得多少？
<gadget id="calculator">19.8 - 5.6</gadget>
<output>14.2</output>

<gadget id="calculator">100 - 14.2</gadget>
<output>85.8</output>

<gadget id="calculator">85.8 * 0.15</gadget>
<output>12.87</output>

<result>12.87</result>