Uncle Wang participated in the new rural cooperative medical insurance in our district. The clause stipulates: hospitalization medical expenses shall be compensated at the threshold of 800 yuan for district-level hospitals, and 55% of the part above the threshold shall be compensated. This year, Uncle Wang suffered from acute enteritis and was hospitalized in the District People's Hospital for 12 days, with a total medical expenses of 6,200 yuan. According to regulations, how much should Uncle Wang pay?
王大伯参加了我区新型农村合作医疗保险．条款规定：住院医疗费补偿起付线区级医院800元，在起付线以上的部分按55%补偿．今年王大伯患急性肠炎在区人民医院住院治疗12天，共计医疗费6200元．按规定王大伯自付多少元？
<gadget id="calculator">6_200 - 800</gadget>
<output>5_400</output>

<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">5_400 * (11/20)</gadget>
<output>2_970</output>

<gadget id="calculator">6_200 - 2_970</gadget>
<output>3_230</output>

<result>3_230</result>