Convert doubles to integers (population estimate)

#include <stdio.h>
int main (void){
    int popCurrent, popProjectedint;
    double Projection, popProjected;
    scanf ("%d %lf", &popCurrent, &Projection);
    popProjected = popCurrent * Projection/100 + popCurrent;
    popProjectedint = (int) popProjected;
    printf ("%d", popProjectedint);
    return 0;
}