def percentChange(startValue : float, endValue : float) -> float:
    """returns percent change between two points

    Args:
        startValue (float): starting point
        endValue (float): ending point

    Returns:
        float: percent change
    """
    try:
        x = (endValue - startValue)/abs(startValue) *100
        if x == 0.0:
            return 0.0000000001
        else:
            return x
    except ZeroDivisionError:
        return 0.0000000001