a program to calculate Income tax based on annual income according to given rules.

//Income tax is calculated on annual income according to following rules.
 //      salary                                  married                   unmarried
//up to 100000                               0%                          0%
//100000... 300000                        5%                          10%
//above    300000                          15%                        20%
#include<stdio.h>
#include<conio.h>
{
float annual_salary,income_tax;
char marital_status;
printf("enter you marital status\n");
printf("married(m) and\n");
printf("unmarried(u)\n");
scanf(" %c",&marital_status);
printf("now enter you annual income ?\n");
scanf("%f",&annual_income);
if((marital_status=='m')||(marital_status=='u)' && annual_salary<=100000)
     {
       income_tax=0*annual_salary;
       printf("tax amount=%f\n",income_tax);
      }
elseif((marital_status=='m') && (annual_salary>100000 && annual_salary<=300000)
     {
       income_tax=0.05*annual_salary;
       printf("tax amount=%f\n",income_tax);
      }
elseif((marital_status=='m') && (annual_salary>300000))
     {
       income_tax=0.15*annual_salary;
       printf("tax amount=%f\n",income_tax);
      }
elseif((marital_status=='u') && (annual_salary>100000 && annual_salary<=300000)
     {
       income_tax=0.10*annual_salary;
       printf("tax amount=%f\n",income_tax);
      }
elseif((marital_status=='u') && (annual_salary>300000)
     {
       income_tax=0.2*annual_salary;
       printf("tax amount=%f\n",income_tax);
      }
getch();
}