The area of the large circle is 160% of the area of the small circle, how much more is the area of the large circle than the area of the small circle
大圆面积是小圆面积的160%，大圆面积比小圆面积多多少
<gadget id="calculator">160 / 100</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(8/5) - 1</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>