#include <stdio.h>
#include <math.h>
#include <algorithm>

int n,m,p,c,ans;

void solve(){
    scanf("%d%d%d",&n,&m,&p);
    c = ceil(m*p/100.);
    ans = (n-m)/c;
    n -= ans*c;
    if(n>=m) ans++;
    printf("%d\n",std::max(ans,0));
}

int main(){
    int T; scanf("%d",&T);
    while(T--) solve(); 
}