Calculator

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>

void main() {
    float num1, num2;
    char operand;
    do {
        printf("\nCALCULATOR\n");
        printf("*,/,+,-, %\n\n");
        scanf_s("%f", &num1);
        fflush(stdin);
        operand = _getche();
        //printf("\n\n%d, %c", operand, operand);
        fflush(stdin);
        if (operand == '*') {
            scanf_s("%f", &num2);
            printf("%.2f*%.2f=%.2f",num1, num2, num1*num2);
        }
        else    if (operand == '/') {
            scanf_s("%f", &num2);
            printf("%.2f/%.2f=%.2f", num1, num2, num1/num2);
        }
        else    if (operand == '+') {
            scanf_s("%f", &num2);
            printf("%.2f+%.2f=%.2f", num1, num2, num1+num2);
        }
        else    if (operand == '-') {
            scanf_s("%f", &num2);
            printf("%.2f-%.2f=%.2f", num1, num2, num1-num2);
        }
        else    if (operand == '%') {
            scanf_s("%f", &num2);
            printf("%d%c%d=%d", int(num1),'%', int(num2), int(num1)%int(num2));
        }
        _sleep(3000);
        system("CLS");
    } while (true);
}