A simple NSNumber class extension that provides better formatting for currency.
Use this to correctly round an NSNumber to the 2nd decimal point based on standard "round half-up" methodology in order to calculate tax and percentages of currency, etc.
If you're not using CocoaPods, you should be. Simply add pod 'MRCurrencyRound' to your Podfile
After you've got the pod installed into your project's workspace, you can use the methods NSNumber.currencyRound and NSNumber.currencyString to return properly formatted currency objects.
NSNumber *example = [NSNumber alloc] initWithFloat:43.652443f];
NSLog(@"Currency String: %@", example.currencyString);
// Currency String: $43.65
// Or whatever your local currency format is (€43.65 or 43.65DKK)