The power consumption of a certain factory last year was 5.5 million kWh, and this year it saved 25% of the electricity compared with last year. How many million kWh is the power consumption this year?
某工厂去年用电量是550万千瓦时，今年比去年节电二成五，今年用电量是多少万千瓦时．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">550 * (3/4)</gadget>
<output>825/2 = around 412.5</output>

<result>825/2 = around 412.5</result>