In 2012, the school paid a total of 9,720 yuan in electricity bills. This year, in response to the call for "energy saving", the school plans to carry out electricity conservation activities. It plans to save 90 yuan per month on average compared with 2012. According to this calculation, how much is the school expected to pay for electricity this year?
学校2012年共缴纳电费9720元，今年为响应"节能"号召，准备开展节约用电活动，计划平均每月比2012年每月节省90元．照这样计算，今年学校预计将缴纳电费多少元？
<gadget id="calculator">90 * 12</gadget>
<output>1_080</output>

<gadget id="calculator">9_720 - 1_080</gadget>
<output>8_640</output>

<result>8_640</result>