Loosing fractional zeros when formatting a NSDecimalNumber with NSNumberFormatter

I use the following code to format string numbers by adding thousand separation points: ``` NSDecimalNumber *decimalNumber = [NSDecimalNumber decimalNumberWithString:@"0.000"]; NSLog(@"decimalNumber = %@",decimalNumber); NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; [numberFormatter setGroupingSeparator:@"."]; [numberFormatter setGroupingSize:3]; [numberFormatter setUsesGroupingSeparator:YES]; [numberFormatter setDecimalSeparator:@","]; [numberFormatter setMaximumFractionDigits:9]; NSString *finalString = [numberFormatter stringFromNumber:decimalNumber]; NSLog(@"finalString = %@",finalString); ``` And if I want to format @"0.000" string (it's not necessary to be 3 zeros, there can be less or much more) I have the following log output: ``` decimalNumber = 0 finalString = 0 ``` but what I want is to keep fraction zeros, i.e in this case my string must remain unchanged. I see that these zeros are lost when I create the `NSDecimalNumber`, and I need another approach. What can be it?