#include<bits/stdc++.h>
using namespace std;
#define il inline
#define rg register
il int read()
{
    int re=0,k=1;char ch=getchar();
    while(ch>'9'||ch<'0'){if(ch=='-')k=-1;ch=getchar();}
    while(ch<='9'&&ch>='0'){re=re*10+ch-48;ch=getchar();}
    return re*k;
}

il void write(int x)
{
    if(x<0)return putchar('-'),write(-x),void();
    if(x<10)return putchar(x+48),void();
    return write(x/10),write(x%10),void();
}
signed main()
{
    int T=read();
    while(T--)
    {
        int n=read();
        int m=read();
        int p=read();
        int g=100-p;
        int t1=m*g/100;
        if(n<m)
        {
            puts("0");
            continue;
        }
        else 
        {
            write((n-m)/(m-t1)+1);
            puts("");
        }
    }
}