My code is not working. It is not executing grades. So please help me

Question

#include <stdio.h>
#include<conio.h>
int main() {
int salary,allow;
float hra,da,pf,total;
char grade;
printf("Hello Everyone, This is a program to find the salary");
printf("\n Please Enter Your Basic Salary");
scanf("%d",&salary);
printf("Please enter your grade");
scanf("%d",&grade);

hra=0.2*salary;
da=0.5*salary;
pf=0.11*salary;
printf("Your HRA is %f",hra);
printf("Your DA is %f",da);
printf("Your PF is %f",pf);

if(grade=="A"||grade=="a"){
allow=1700;
printf("Your allow amount is 1700");
}
else if(grade=="B"||grade=="b"){
allow=1500;
printf("Your allow amount is 1500");
}
else{
allow=1300;
printf("Your allow amount is 1300");
}

total=salary+hra+da+allow-pf;
printf("Your total salary is %f",total);
getch();

}

Answer 1

scanf("%c", grade);

Answer 2

Your grade is of character data type..And character should be defined in single quotes 'a' ..In your if statement you have compared grade with string not a character..Double quotes are used for defining string constant..

Just remove double quotes and use single quotes