#include<bits/stdc++.h>
using namespace std;
int t,n,m,p,nn;
int main(){
    scanf("%d",&t);
    while (t--){
        scanf("%d%d%d",&n,&m,&p);
        nn=m-m*(100-p)/100;
        if (n<m)printf("0\n");
        else printf("%d\n",(n-m)/nn+1);
    }
}