The number of employees employed by China Resources last year decreased by 15% compared to the year before, and this year's number of employees is 80% of that of last year. What percentage is the number of employees this year compared to the year before?
华润公司去年用工人数比前年减少15%，今年的用工人数是去年的80%，今年的用工人数是前年的百分之几？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(17/20) * (4/5)</gadget>
<output>17/25 = around 0.68</output>

<result>17/25 = around 0.68</result>