C - Output value not calculating correctly - c

Question

I'm just started to learn how to code and decided to try to create a program that would calculate the amount of calories a person burns based on certain values that are asked of them. However, whenever I run it instead of getting the calculated value based on their values I keep getting the value 2686708. I just can't seem to make it work no matter what.
//included libraries
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
//constants
#define WALKING_CAL 5
#define EXERCISING_CAL 10
#define EATING_CAL 40
#define DRINKING_CAL 20
#define CALORIES_PER_POUND 3500*/
//main function
int main() {
int current_weight, goal_weight;
int walking, exercise, drinking, eating;
int total_walking, total_exercising, total_eating, total_drinking;
int calories_burned, calories_gained;
printf("What is your current weight?\n");
scanf("%d", &current_weight);
printf("\nWhat is your goal weight?\n");
scanf("%d", &goal_weight);
total_walking = WALKING_CAL * walking;
total_exercising = EXERCISING_CAL * exercise;
total_eating = EATING_CAL * eating;
total_drinking = DRINKING_CAL * drinking;
calories_burned = (total_walking + total_exercising)- (total_eating + total_drinking);
if (goal_weight > current_weight){
printf("\nHow many minutes do you walk per day?\n");
scanf("%d", &walking);
printf("\nHow many minutes do you exercise per day?\n");
scanf("%d", &exercise);
printf("\nHow many minutes do you drink per day?\n");
scanf("%d", &drinking);
printf("\nHow many minutes do you eat per day?\n");
scanf("%d", &eating);
printf("You gain %d calories per day.", &calories_burned);
}
return 0;
}

Answer 1

This:
printf("You gain %d calories per day.", &calories_burned);
prints the address of the variable, not the variable's value (as an int, which in turn is undefined behavior but seems to not blow up for you at least).
It should be:
printf("You gain %d calories per day.", calories_burned);
Drop the &.