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

int main()
{
    int T;
    cin >> T;
    while(T --)
    {
        int n, m, p;
        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;
}