View Compilation Error

0_0_21723621_6522.cpp: In function 'int main()':
0_0_21723621_6522.cpp:49:30: error: invalid operands of types 'double' and 'int' to binary 'operator%'
         else if((sum/12*100)%10==0) printf ("$%.1f\n",sum/12);
                              ^