The total income of a garment factory from processing garments last year was 8.4 million yuan. According to the tax rate regulations of the country, a value-added tax of 17% should be paid. How much value-added tax do you have to pay in total?
某服装厂去年加工服装的收入总额是840万元．按国家的税率规定，应缴纳17%的增值税．一共要缴纳多少万元增值税？
<gadget id="calculator">17 / 100</gadget>
<output>17/100 = around 0.17</output>

<gadget id="calculator">840 * (17/100)</gadget>
<output>714/5 = around 142.8</output>

<result>714/5 = around 142.8</result>