#include<bits/stdc++.h>

using namespace std;

int n,m,p,q,ans;
void solve(){
    scanf("%d%d%d",&n,&m,&p);
    q=m*(100-p)/100;q=m-q;
    if(n>=m)ans=(n-m)/q+1;
    else ans=0;
    printf("%d\n",ans);
}
int main(){
    int t;scanf("%d",&t);
    for(;t;--t)solve();
    return 0;
}