Uncle Wang, a professional mushroom grower, harvested 200kg of shiitake mushrooms. Their water content is 99%. After drying for a while, the water content drops to 98%. How much does this batch of shiitake mushrooms weigh after drying?
种菇专业户王叔叔采收了200kg香菇，它们的含水量是99%，稍微晾晒后，含水量下降到98%，这批香菇晾晒后有多重？
<gadget id="calculator">99 / 100</gadget>
<output>99/100 = around 0.99</output>

<gadget id="calculator">1 - (99/100)</gadget>
<output>1/100 = around 0.01</output>

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

<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>

<gadget id="calculator">1 - (49/50)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">2 / (1/50)</gadget>
<output>100</output>

<result>100</result>