#include <bits/stdc++.h>
#define ls rt<<1
#define rs rt<<1|1
using namespace std;

typedef  long long ll;
const int inf = 0x3f3f3f3f;
const int maxn = 1000001;


int main() {
    int t;
    scanf("%d", &t);
    while(t--) {
        ll n, m, p;
        scanf("%lld%lld%lld", &n, &m, &p);
        ll s=m*(100-p)/100;
        if(n<m){
            printf("0\n");
            continue;
        }
        ll ans=(n-m)/(m-s)+1;
        printf("%lld\n",ans);
    }
}