Use Float or Decimal for Accounting Application Dollar Amount?

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int cents = num % 100;
int dollars = (num - cents) / 100;
printf("%d.%02d", dollars, cents);

#include <stdio.h>

int main()
{
    printf("Mapping 100 numbers between 0 and 1 ");
    printf("to their hexadecimal exponential form (HEF).n");
    printf("Most of them do not equal their HEFs. That means ");
    printf("that their representations as floats ");
    printf("differ from their actual values.n");
    double f = 0.01;
    int i;
    for (i = 0; i < 100; i++) {
        printf("%1.2f -> %an",f*i,f*i);
    }
    printf("Printing 128 'float-compatible' numbers ");
    printf("together with their HEFs for comparison.n");
    f = 0x1p-7; // ==0.0071825
    for (i = 0; i < 0x80; i++) {
        printf("%1.7f -> %an",f*i,f*i);
    }
    return 0;
}

DECLARE @Float1 float, @Float2 float, @Float3 float, @Float4 float;
    SET @Float1 = 54;
    SET @Float2 = 3.1;
    SET @Float3 = 0 + @Float1 + @Float2;
    SELECT @Float3 - @Float1 - @Float2 AS "Should be 0";

Should be 0
----------------------
1.13797860024079E-15

DECLARE @Fixed1 decimal(8,4), @Fixed2 decimal(8,4), @Fixed3 decimal(8,4);
SET @Fixed1 = 54;
SET @Fixed2 = 0.03;
SET @Fixed3 = 1 * @Fixed1 / @Fixed2;
SELECT @Fixed3 / @Fixed1 * @Fixed2 AS "Should be 1";

Should be 1
---------------------------------------
0.99999999999999900