Dongsheng Woodenware Factory produced 920 writing desks in March, an increase of 15% compared to the plan. How many more writing desks were actually produced than planned?
东升木器厂三月份生产写字台920张，比计划增产了15%，实际比计划多生产写字台多少张？
<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>

<gadget id="calculator">920 / (23/20)</gadget>
<output>800</output>

<gadget id="calculator">920 - 800</gadget>
<output>120</output>

<result>120</result>