#include <bits/stdc++.h>
using namespace std;
int main(){
    int test;
    scanf("%d", &test);
    while(test--){
        int n,m,p;
        scanf("%d%d%d",&n,&m,&p);
        int cost=m-m*(100-p)/100;
        printf("%d\n",n<m?0:(n-m)/cost+1);
    }
}