A project can be completed in 8 days by A alone, and 10 days by B alone. By how many percent is A's work efficiency higher than B's work efficiency?
一件工程，甲独做要8天完成，乙独做要10天完成，甲的工作效率比乙的工作效率高百分之几？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/8) - (1/10)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/40) / (1/10)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>