#include<iostream>
#include<stdio.h>
#include<math.h>
#include<string>
#include<string.h>
#include<algorithm>
#include<vector>
using namespace std;
#define ll long long 
const int maxn = 1e5+10;
int n,m,p;
int up(int x,int y)
{
    if(x%y==0) return x/y;
    return x/y+1;
}
int main()
{
    int t; scanf("%d",&t);
    while(t--)
    {
        scanf("%d%d%d",&n,&m,&p);
        int tmp=up(m*p,100);
        if(n<m) printf("0\n");
        else
        printf("%d\n",(n-m)/tmp+1);
    }
    return 0;
}