In 2011, the total number of primary school students in my country decreased by 29% compared with 1997, which is the same as in 1997.
2011年我国小学生总数比1997年减少29%，是1997年的多少．
<gadget id="calculator">29 / 100</gadget>
<output>29/100 = around 0.29</output>

<gadget id="calculator">1 - (29/100)</gadget>
<output>71/100 = around 0.71</output>

<result>71/100 = around 0.71</result>