15% of the plan was overfulfilled, indicating how much of the plan was completed.
超额完成了计划的15%，说明完成了计划的多少．
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<result>23/20 = around 1.15</result>