ios7 - Objective C: decimalNumberByMultiplyingByPowerOf10 looses precision on perfect division -

i have scenario need show amount 2 precision values always. server sends me values in cents , changes dollars using below written code.

#import <foundation/foundation.h>  int main (int argc, const char * argv[]) {    nsautoreleasepool * pool = [[nsautoreleasepool alloc] init];     nsdecimalnumber *shifteddecimalnumber = [[[nsdecimalnumber alloc] initwithstring:@"100.00"]  decimalnumberbymultiplyingbypowerof10:-2];      nslog (@"%@",shifteddecimalnumber);    [pool drain];    return 0; } 

this code works fine when have values 101 etc because when use decimalnumberbymultiplyingbypowerof10 power -2 1.01 (101/100)

but if have 100 or 200 value decimalnumberbymultiplyingbypowerof10 power -2 gives me 1 or 2 respectively.

how can ensure decimal value 2 precision always?

thanks in advance.

the precision not "lost". it's trailing zeroes not printed nslog() when logging nsdecimalnumber (to exact, trailing zeros not printed -description of nsdecimalnumber, called under bonnet).

try getting double representation of number, log using format specifiers requires 2 decimal places included: nslog (@"%.2f", [shifteddecimalnumber doublevalue]);

note: conversion double necessary because format specifier used requires double argument. of course there might other ways print number.