Grandpa counted his annual expenditures, of which food and beverage accounted for 30%, travel accounted for 20%, donations accounted for 15%, and others accounted for 35%. Make these data into a fan-shaped statistical chart, which indicates the central angle of the fan-shaped circle of donation expenditure in °
爷爷将他全年的各项支出统计了一下，其中饮食占30%，旅游占20%，捐款占15%，其他占35%．将这些数据制成扇形统计图，表示捐款支出的扇形圆心角是多少°
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">360 * (3/20)</gadget>
<output>54</output>

<result>54</result>