#include <algorithm>
#include <cstdio>
#include <iostream>
#include <cmath>
#include <cstring>
using namespace std;
typedef long long ll;
const int N=1e6+7;
const int INF=0x3f3f3f3f;
int n, m, p;
void init()
{
    n=m=p=0;
}
int main()
{
    int T;
    cin >> T;
    while(T --)
    {
        init();
        cin >> n >> m >> p;
        double t = (double)(100 - p) / 100;
        int ans = 0;
        while(n >= m)
        {
            n = n - (m - m * t);
            ans ++;
        }

        cout << ans << endl;
    }

    return 0;
}