def get_pct_change(ini_val, new_val):
    """
    Get percentage change between two values
    Args:
        Double: Initial value
        Double: New value
    Returns:
        Double: Percentage change between the 2 values
    """
    if not new_val == 0:
        if new_val < ini_val:
            ret = ((ini_val - new_val) / ini_val) * (-1)
        else:
            ret = (new_val - ini_val) / new_val
    else:
        ret = 0

    return ret