#include<bits/stdc++.h>
using namespace std;

#define pb push_back
#define mp make_pair
#define ALL(x) (x).begin(),(x).end()
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
const int maxn = 3e5 + 70;
const int INF = 0x3f3f3f3f;
const ll inf = 0x3f3f3f3f3f3f3f3f;
const int MOD = 1e9 + 7;
const double eps = 1e-7;
const double PI = acos(-1.0);

int n, m, k;

int a[maxn];

int main(){
    //freopen("in.txt", "r", stdin);
    int T; cin>>T;
    while(T--){
        cin>>n>>m>>k;
        int x = m * (100 - k) / 100, d = m - x;
        //cout<<"x: "<<x<<" ,d: "<<d<<endl;
        printf("%d\n",n >= m ? (n - m) / d + 1 : 0);
    }
    return 0;
}