The turnover of a shopping mall last year was 7.2 million yuan, 20% less than this year. How much is the turnover of this shopping mall this year?
某商场去年营业额是720万元，比今年少20%，今年这个商场的营业额是多少万元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">720 / (4/5)</gadget>
<output>900</output>

<result>900</result>