Python Openpyxl图表轴的百分比

我正在使用openpyxl在excel中创建图表，我希望我的一些图表具有以百分比为单位的y轴。这在openpyxl中可能吗？在xlsxwriter中很容易，但我不知道如何在openpyxl中实现。下面的代码适用于具有两个y轴的图表

谢谢

编辑：

事实证明，至少在这个问题上，这就像更改y_轴的格式一样简单

c2.y_axis.number_format = '0%'


def line_chart_2axis(sheet_name, file_name):
    font = Font(color = "000000", size = 8.5, name = 'Avenir Next Condensed Regular')
    c1 = LineChart()
    data1 = Reference(data_sheet, min_col=3, min_row=1, max_col=3, max_row=len(df1)+1)
    dates = Reference(data_sheet, min_col=1, min_row=2, max_col=1, max_row=len(df1)+1)
    c1.add_data(data1, titles_from_data=True)
    c1.title = "Title"
    c1.style = 5
    c1.y_axis.title = 'Y Axis 1'
    c1.x_axis.number_format = 'Mmm-YYYY'
    c1.set_categories(dates)
    c1.y_axis.majorGridlines = None
    c1.legend.position = 'b'
    s1 = c1.series[0]
    s1.graphicalProperties.line.width = 14000
    s1.graphicalProperties.line.solidFill = "8989ff"
    c2 = LineChart()
    data2 = Reference(data_sheet, min_col=2, min_row=1, max_col=2, max_row=len(df1)+1)
    c2.add_data(data2, titles_from_data=True)
    c2.y_axis.axId = 200
    c2.y_axis.title = "Y Axis 2"
    c2.y_axis.crosses = "max"
    c2.y_axis.majorGridlines = None
    s2 = c2.series[0]
    s2.graphicalProperties.line.width = 14000
    s2.graphicalProperties.line.solidFill = "000062"
    c1 += c2
    sheet.add_chart(c1, "B2")