conv2

#pragma mark -
#pragma mark PickerView Delegate

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component

{

    [self updateConversionLabel];
}


- (void)updateConversionLabel
{
    float convertFrom = [[_convertRates objectAtIndex:[picker selectedRowInComponent:0]] floatValue];

    float convertTo = [[_convertRates objectAtIndex:[picker selectedRowInComponent:1]] floatValue];

    float input = [inputText.text floatValue];
    float to = convertTo;
    float from = convertFrom;

    float convertValue = input;
    float relative = to / from;
    float result = relative * convertValue;

    NSString *convertFromName = [_convertFrom objectAtIndex:[picker selectedRowInComponent:0]];
    NSString *convertToName = [_convertFrom objectAtIndex:[picker selectedRowInComponent:1]];

    NSNumber *resultNumber = [[NSNumber alloc]initWithFloat:result];
    NSNumber *inputNumber = [[NSNumber alloc ]initWithFloat:convertValue];

    NSNumberFormatter *formatterResult = [[NSNumberFormatter alloc] init];
    formatterResult.numberStyle = NSNumberFormatterDecimalStyle;
    NSNumberFormatter *formatterInput = [[NSNumberFormatter alloc] init];
    formatterInput.numberStyle = NSNumberFormatterDecimalStyle;

    NSString *formattedResultString = [formatterResult stringFromNumber:resultNumber];
    NSString *formattedInputString = [formatterInput stringFromNumber:inputNumber];

    NSString *resultString = [[NSString alloc]initWithFormat:
                              @" %@ %@",formattedResultString, convertToName];


    resultLabel.text = resultString;

    NSString *formelString = [[NSString alloc]initWithFormat:
                              @" %@ %@=", formattedInputString, convertFromName];
    formelLabel.text = formelString;


}