#include<bits/stdc++.h>
#define N 
using namespace std;
int T;
int n,m,p;

void solve() {
    scanf("%d%d%d",&n,&m,&p);
    int ans = 0;
    while(n >= m) {
        n -= m;
        n += (m*(100-p)/100);
        ans++;
    }
    printf("%d\n",ans);
}

int main() {
    scanf("%d",&T);
    while(T--) {
        solve();
    }
    return 0;
}