#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
#define ll long long
#define ge getchar 
#define pun putchar('\n')
#define pu putchar
#define puk putchar(' ')
char c;
int tt,n,m,p,s,d;
ll g[50];
int sri(){c=ge();int x=0;while(c<'0')c=ge();while(c>='0')x=(x<<3)+(x<<1)+c-'0',c=ge();return x;}
void sc(ll x){int l=0;if(x==0)g[l=1]=0;while(x)g[++l]=x%10,x/=10;for(;l;l--)pu(g[l]+'0');}
int main(){
    tt=sri();
    while(tt--){
        n=sri();m=sri();p=sri();s=0;d=(p*m+99)/100;
        if(n>=m){
            s=(n-m)/d;n-=s*d;
        }
        while(n>=m)n-=d,s++;
        sc(s);pun;
    }
    return 0;
}