import math


def find_days_to_final_goal(start_value, end_value, iteration_amount):
    """
    Returns the total amount of days it will take to reach the goal calculated from the start_value, end_value, and
    iteration_amount.
    :param start_value: The starting value of the goal.
    :param end_value: The end value of the goal.
    :param iteration_amount: the percentage that represents the intensity of the goal in the form 0.1
    :return:
    """
    return int(abs(math.ceil(math.log(end_value / start_value) / iteration_amount)))