The machinery factory used to produce 2,000 parts per shift, but now it produces 580 more parts per shift than in the past. What percentage of parts is produced per shift now?
机械厂过去每班生产零件2000个，现在每班比过去多生产580个，现在每班生产的零件是过去的百分之几？
<gadget id="calculator">2_000 + 580</gadget>
<output>2_580</output>

<gadget id="calculator">2_580 / 2_000</gadget>
<output>129/100 = around 1.29</output>

<result>129/100 = around 1.29</result>