nsnumberformatter - What is the best way to format string representation of number in iOS -

I'm writing in ace app, I've got a Jason object whose value is represented by the string, Some:

  {"price": "20000"}   
 And for the ease of readability, I want to format it with command, and I Have found a way, but I think it's a crazy clanky (I probably just did not use the right words in Google)  
  NSNumberFormatter * formatter = [NSNumberFormatter new]; [Setter Settlement Style: NSNumberFormatterDecimalStyle]; NSString value = [NSString stringWithFormat: @ "$% @", [formatter stringFromNumber: [NSNumber numberElectrical: [value intValue]]]];   
 This is very complicated for me to get the proper formatting  
 
 Convert NSSTING to a bowel.  
 Convert int to nsnm.  
 Convert NSNM to NSSTING  
  Create a new string with the appropriate format  (@ David / @ van) How do I leave this step!)    < 
 
 
 Best for currency  NSNumberFormatterCurrencyStyle     NSNumberFormatter * formatter = [NSNumberFormatter new] ; [Setter Settlement Style: NSNumberFormatterCurrencyStyle]; NSNumber * price = @ ([priceTextFromJSON double value]); NSString * priceText = [format stringfarmNumber: value];