#include<stdio.h>
#include<algorithm>
using namespace std;

int main(){
    int test;
    int n,m,p;
    scanf("%d",&test);
    for(int k = 0;k < test;k++){
        scanf("%d%d%d",&n,&m,&p);
        int i = 0;
        while(n >= m){
            int x = (int)(1.0*m*(100-p)/100);
            n -= m;
            n += x;
            i++;
        }
        printf("%d\n",i);
    }
}