def pad_bounds(bounds, percent=0):
    """Pad the bounds by a percentage

    Parameters
    ----------
    bounds : list-like of (west, south, east, north)
    percent : int, optional
        percent to pad the bounds

    Returns
    -------
    (west, south, east, north)
    """

    xmin, ymin, xmax, ymax = bounds
    x_pad = (xmax - xmin) * (percent / 100)
    y_pad = (ymax - ymin) * (percent / 100)

    return [xmin - x_pad, ymin - y_pad, xmax + x_pad, ymax + y_pad]