#include<iostream>
#include<algorithm>
#include<cstdio>
using namespace std;
typedef long long LL;
int main(){
    LL test;
    cin>>test;
    while(test--){
        LL n;
        double m;
        double p;
        scanf("%lld%lf%lf",&n,&m,&p);
        LL ans=0;
        while(n>0){
            if(n<m)break;
        ++ans;
        n-=m;
        int mid=m*(100-p)/100.0;
        n+=mid;
        }
        printf("%lld\n",ans);
    }
    return 0;
}