Incometax problem v1.1, C (gcc)

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//gcc 5.4.0

#include  <stdio.h>
//We would like to write a C program to calculate the income tax of the employees in an organization according the following criteria:  
//-	The income tax is zero  = 0 if income less than or equal 10,000 
//-	The income tax is 10% if the income is less than 50,000. Otherwise, the income tax is 20% if the income is greater than 50000 and less than 99,9999 
//-	For an income greater than or equal 100000, the tax is 30%. 
//START PROGRAM
//double income
//double incometax
//PRINT "Please Input:\n Name: \n Income:\n"
//READ income
//     if (income<=10000){
//         incometax=0;
//         PRINT "Your income tax is %lf",incometax);
//                      }
//     else if (income>=10000&&income<=50000){
//          incometax=income*.1;
//         PRINT "Your income tax is $%lf",incometax);
//                                           }
//     else if (income>=50000&&income<=999999){
//          incometax=income*.2;
//          PRINT "Your income tax is $%lf",incometax);
//                                            }
//     else{
//          incometax=income*.3;
//          PRINT "Your income tax is $%lf",incometax);
//         }
//END PROGRAM

int main(void)
{
double income;
double incometax;
char employeename[30];
int c1=10000;
int c2=50000;
int c3=999999;
printf("Please Input:\n Name: \n Income:\n");
scanf("%s%lf",&employeename,&income);
printf("---------------------------------------------\nName:%s\n",employeename);
     if (income<=c1){
         incometax=0;
         printf("Your income tax is %lf",incometax);
                      }
     else if (income>=10000&&income<=c2){
          incometax=income*.1;
         printf("Your income tax is $%lf",incometax);
                                           }
     else if (income>=c2&&income<=c3){
          incometax=income*.2;
         printf("Your income tax is $%lf",incometax);
                                            }
     else{
          incometax=income*.3;
         printf("Your income tax is $%lf",incometax);
         }    
}

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Compilation time: 0.12 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0,34 sec