C program to enter basic salary and calculate gross salary of an employee

Write a C program to input basic salary of an employee and calculate gross salary according to given conditions:
Basic Salary <= 10000 : HRA = 20%, DA = 80%
Basic Salary is between 10001 to 20000 : HRA = 25%, DA = 90%
Basic Salary >= 20001 : HRA = 30%, DA = 95%

How to calculate gross salary of an employee using if else in C programming. Program to calculate gross salary of an employee using if else in C program. Logic to find gross salary of employee in C program.

Example
Input

Input basic salary of an employee: 22000

Output

Gross salary = 44000

Required knowledge

Basic C programming, If else, Basic mathematics

Logic to find gross salary of an employee

Calculating salaries with additions and deductions is a common task in companies. You must be aware of the logic to compute salary. If you don't know the logic to compute gross salary read below, otherwise skip to the program section.

Gross salary is the final salary computed after the additions of DA, HRA and other allowances. The formula for DA and HRA is
da = basic_salary * (DA/100)
If DA = 80% then the statement becomes da = basic_salary * (80/100). Which can also be written as DA = basic_salary * 0.08. Likewise you can also derive a formula for HRA.

Below is the step by step descriptive logic to find gross salary of an employee.

  1. Input basic salary of employee. Store it in some variable say basic_salary.
  2. If basic_salary <= 10000 then, hra = basic_salary * 0.8 and da = basic_salary * 0.2.
  3. Similarly check basic salary and compute hra and da accordingly.
  4. Calculate the final gross salary using formula gross_salary = basic_salary + da + hra.

Program to calculate gross salary of employee

/**
 * C program to calculate gross salary of an employee
 */

#include <stdio.h>

int main()
{
    float basic, gross, da, hra;

    // Read basic salary of employee
    printf("Enter basic salary of an employee: ");
    scanf("%f", &basic);


    // Calculate D.A and H.R.A according to specified conditions
    if(basic <= 10000)
    {
        da  = basic * 0.8;
        hra = basic * 0.2;
    }
    else if(basic <= 20000)
    {
        da  = basic * 0.9;
        hra = basic * 0.25;
    }
    else
    {
        da  = basic * 0.95;
        hra = basic * 0.3;
    }

    // Calculate gross salary
    gross = basic + hra + da;

    printf("GROSS SALARY OF EMPLOYEE = %.2f", gross);

    return 0;
}

Note: %.2f is used to print the gross salary only up to two decimal places. You can also use %f to print fractional values normally up to six decimal places.

Output

Enter basic salary of an employee: 22000
GROSS SALARY OF EMPLOYEE = 49500.00

Happy coding 😉

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