How does the percentage of echarts water polo chart show decimal places?

how does echarts water polo display decimal places? My configuration is as follows
    var optionFH = {

                     series: [{
                        type: "liquidFill",
                        data: [0.6115, 0.5, 0.4, 0.3],
                        // 61.15% 61%
                        radius: "80%",
                        outline: {
                        borderDistance: 0, // 
                        itemStyle:{
                            borderWidth: 0,  //
                            shadowColor: "-sharp000" // 
                        }
                    },
                    label: { //To change the text, you may use label.formatter, which can be set to a string or function.
                normal: {
                    // formatter: "{a}\n{b}\nValue: {c}", //If it is a string, {a} series name, {b} data name,{c} data value.
                    textStyle: {
                        // color: "red", //
                        // insideColor: "yellow", //
                        fontSize: 10
                    },
                    // position: ["center"], //Text position is at the center by default. label.position can be set to be "inside", "left", "right", "top", "bottom", or horizontal and vertical positions like ["10%", "20%"], which means "10%" to the left (controlled by label.align, which can be "left", "center", or "right") and "20%" to the top (controlled by label.baseline, which can be "top", "middle", or "bottom").
                    // position:"top"
                    align: "center",
                    // baseline: "center"
 
                }
            },
                    }]
                };

effect

clipboard.png

what I want to show is 61.15% followed by a decimal. How can it be achieved?

Apr.26,2022

formatter: function(param) {
    return param.seriesName + '\n'
        + param.name + '\n'
        + 'Value:' + param.value.toFixed(2);
}


could you tell me how to solve

?
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