Thread: class assignment

Hey I'd really appreciate some help on my homework assignment, I'm just beginning to learn loops and I can't figure out why it isn't working. I attached a screenshot of what the output it supposed to be, but when I run mine it outputs that the volume is 0 after 1082801280 regardless of what I enter into it. Any help would be great hopefully I'm not doing anything too dumb.

Code:

#define _CRT_SECURE_NO_WARNINGS
#include  <stdio.h>


int main(void)
{
    //declare variables
    double time = 0;
    double water = 500;
    double watergain;
    double waterloss = 0;
    //opening statement
    
        printf("Please enter the additional gallons of water needed every hour: ");
        scanf("%d", &watergain);
        
        while (water > 100) {
            printf("The volume is %d after %d hours\n", water, time++);
            waterloss = (10 * water) / 100;
            water = water - waterloss + watergain;
        }
            
        
    
    system("pause");
    return (0);
}