200*(1-(1/2))*(1-(1/3))*...*(1-(1/100)).
200*(1-(1/2))*(1-(1/3))*…*(1-(1/100))．
<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">200 * (1/100)</gadget>
<output>2</output>

<result>2</result>