#include <bits/stdc++.h>

#define rep(i,x,y) for(int i=(x);i<=(y);++i)
#define _max(a,b) (a)>(b)? (a):(b)
#define _min(a,b) (a)<(b)? (a):(b)

using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,int> pli;
typedef pair<int,ll> pil;
typedef pair<ll,ll> pll;

int n,m,p;

int main(){
    int t;
    cin>>t;
    while(t--){
        scanf("%d%d%d",&n,&m,&p);
        int los=ceil(double(m*p*0.01));
        int ans=(n-m)/los;
        if(n-ans*los>=m)    ans++;
        if(n<m) ans=0;
        printf("%d\n",ans);
    }
    return 0;
}