The school built a new school building with an actual investment of 1.82 million yuan, saving 180,000 yuan compared with the original plan. What percentage did you save?
学校新建校舍，实际投资182万元，比原计划节约18万元．节约了百分之几？
<gadget id="calculator">182 + 18</gadget>
<output>200</output>

<gadget id="calculator">18 / 200</gadget>
<output>9/100 = around 0.09</output>

<result>9/100 = around 0.09</result>