display every incremented Value on textbox with one seconds delay in wpf

Question

I want to show textbox value incrementing / decrementing every second live on UI but not able to do it. I have bind textbox to property and through for loop increment/decrement and want to show each incremented or decremented value on textbox at interval of 1 seconds.It shows final updated value not every incremented / decremented value on textbox. Can anyone explain how to do it.

 <TextBlock
                    x:Name ="CurrentAmplitude"
                    Margin="45,0,14.4,0"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    Text="{Binding TotalCurrent,UpdateSourceTrigger=PropertyChanged}" />

For loop for increment/decrement in viewmodel

private void IncrementtoTargetAmplitude( double amp1, double amp2, double stepInterval, int ch) 
    {
        for(double i = amp1; i < ch; i++)
        {
            Task.Delay(1000).ContinueWith(_ =>
            {
                TotalCurrent = TotalCurrent + stepInterval;
                if ((amp2 - TotalCurrent) < stepInterval)
                {
                    TotalCurrent = amp2;
                    RaisePropertyChanged(nameof(TotalCurrent));
                }
            });
           
                
                RaisePropertyChanged(nameof(TotalCurrent));
            
        }
    }

    private void DecrementtoTargetAmplitude(double amp1, double amp2, double stepInterval, int ch) 
    {
        for (double i = amp1; i < ch; i++)
        {
            Task.Delay(1000).ContinueWith(_ =>
            {
                TotalCurrent = TotalCurrent - stepInterval;
            });
            if ((amp2-TotalCurrent) < stepInterval)
            {
                TotalCurrent = amp2;
            }
            RaisePropertyChanged(nameof(TotalCurrent));
            
        }

I'm still getting final updated value from this function whereas I need every updated value from for loop. Is there a way to get those value ?