#include<iostream>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include<set>
#include<map>
#include<cstring>
#include<string>
#include<cmath>
#include<ctime>
#include<algorithm>
#define LL long long
#define PII pair<int,int>
#define pi acos(-1.0)
#define lowbit(x) x&(-x)
using namespace std;

int T,n,m,p;

int main(void){
    scanf("%d",&T);
    while(T--){
        scanf("%d %d %d",&n,&m,&p);
        int ans;
        if(n<m) ans=0;
        else{
            int d=m-(int)((100-p)*m*0.01);
            ans=(n-m)/d;
            ans++;
        }
        printf("%d\n",ans);
    }
    return 0;
}