#include<stdlib.h>
#include<stdio.h>
#include<string.h>
#include<limits.h>
#include<string> 
#include<iostream>
#include<algorithm>
#include<vector>
#include<stack>
#include<queue>
#include<utility>
using namespace std;
#define ll long long
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
ll qpow(ll a,ll b,ll mod=1e18+7){ll ans=1;while(b){if(b&1)ans=ans*a%mod;a=a*a%mod;b=b>>1;}return ans;}
bool isPrime(ll x){if(x==2)return true;for(ll i=2;i*i<=x;++i)if(x%i==0)return false;return x>1;}
int main(){
    int t;
    cin>>t;
    while(t--){
        ll n,m,p;
        cin>>n>>m>>p;
        ll ans=0;
        while(m<=n){
            ans++;
            n-=m*p*1.0/100;
        }
        cout<<ans<<endl;
    }
    return 0;
}