The turnover of a shopping mall in 2001 increased by 10% compared with 2000, and in 2002 increased by 10% compared with 2001, and in 2004 and 2003, it decreased by 10% compared with the previous year for two consecutive years. How much has your turnover decreased
某商场的营业额2001年比2000年上升10%，2002年又比2001年上升10%，而2004年和2003年连续两年比上一年降低10%，那么2004年的营业额比2000年的营业额降低了多少
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 * (11/10) * (11/10) * (9/10) * (9/10)</gadget>
<output>9_801/10_000 = around 0.9801</output>

<gadget id="calculator">1 - (9_801/10_000)</gadget>
<output>199/10_000 = around 0.0199</output>

<gadget id="calculator">(199/10_000) / 1</gadget>
<output>199/10_000 = around 0.0199</output>

<result>199/10_000 = around 0.0199</result>