iOS - How to sum(+) of multiple UITextField value in iphone/ios?

float totalSum = 0;
    NSMutableArray *arrayData = [[NSMutableArray alloc] init];
    [arrayData addObject:txt1.text];
    [arrayData addObject:txt2.text];
    
    for(float i=0; i<[arrayData count];i++)
    {
            totalSum = totalSum + [[arrayData objectAtIndex:i] floatValue];        
    }
    NSString *intstring=[ NSString stringWithFormat:@"addition= %.02f",totalSum];
    answer.text=intstring;