#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
using namespace std;
int main()
{

  int T;
  scanf("%d",&T);
  while(T--)
  {
    int n,m,p;
    scanf("%d %d %d",&n,&m,&p);
    int temp = m - int(float(m)*(1.0-float(p)*0.01)+0.001);
    //printf("%d\n",temp);
    int ans = 0;
    while (n>=m)
    {
        n-=temp;
        ans+=1;
    }
    printf("%d\n",ans);
  }
}