The world's per capita water resources are 880 cubic meters and my country's per capita water resources are only 1/4 of the world's per capita water resources. How many cubic meters is my country's per capita water resources less than the world's per capita water resources?
世界人均水资源拥有量是880立方米而我国人均水资源拥有量只有世界人均水资源有量的(1/4)，我国人均水资源拥有量比世界人均水资源量少多少立方米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">880 * (3/4)</gadget>
<output>660</output>

<result>660</result>