#include <iostream>
#include <stdio.h> 
#include <math.h>
using namespace std;

const int MAX_MUN=100001;
int n[MAX_MUN], m[MAX_MUN], p[MAX_MUN];

int main()
{
    int num;
    cin>>num;
    for(int i=0;i<num;i++)  scanf("%d%d%d",&n[i],&m[i],&p[i]) ;
    for(int i=0;i<num;i++){
        double lost= double(m[i]*p[i])/100;
        double l=ceil(lost);
        if(n[i]-m[i]>=0){
            int time=(n[i]-m[i])/l+1;
            cout<<time<<endl;
        }
        else cout<<0<<endl;
        
    }
}