#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <cmath>
using namespace std;
typedef long long LL;

int T;
LL n, m, p, ans;

int main()
{
    scanf("%d", &T);
    for (int cas = 1; cas <= T; cas++) {
        scanf("%lld%lld%lld", &n, &m, &p);
        if (m > n) ans = 0;
        else {
            LL x = m - m * (100 - p) / 100;
            ans = (n - m) / x + 1;
        }
        printf("%lld\n", ans);
    }
    return 0;
}