#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);i++)
#define per(i,a,b) for(int i=(a);i>=(b);i--)
#define REP(i,n) for(int i=0;i<(n);i++)
#define fi first
#define se second
#define pb push_back
#define mp make_pair
using namespace std;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef long long ll;

template<class T> void read(T &x){
    int f=0; x=0; char ch=getchar();
    for(;!isdigit(ch);ch=getchar()) f|=(ch=='-');
    for(;isdigit(ch);ch=getchar()) x=x*10+ch-'0';
    if(f) x=-x;
}



void rmain(){
    int n,m,p,x;
    read(n),read(m),read(p);
    x=m-m*(100-p)/100;
    if(n<m) puts("0");
    else printf("%d\n",(n-m)/x+1);
}

int main(){
    int T; read(T);
    while(T--) rmain();
    return 0;
}