percent

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class percentag_calc : MonoBehaviour {
    public AudioSource Music;
    private float total_time;
    private float present_time;
    public Text Percentage;
    private float perc_float;
    private bool isReached = false;
    public Slider progress;
    // Use this for initialization
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        if (isReached == false)
        {
            total_time = Music.clip.length;
            present_time = Music.time;
        }
        perc_float = ((present_time / total_time) * 100);
        if (perc_float == 100)
        {
            isReached = true;
            perc_float = 100;
        }
        if (isReached == true)
        {
            perc_float = 100;
        }
        Percentage.text = perc_float.ToString("0") + "%";
        progress.value = perc_float;
    }
}