A school used 320 kWh of electricity last month, and this month saved 5% compared with last month. How many kWh of electricity is used this month?
某校上个月用电320千瓦时，本月比上月节约5%，本月用电多少千瓦时？
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">320 * (19/20)</gadget>
<output>304</output>

<result>304</result>