#include<bits/stdc++.h>

using namespace std;
#define ll long long

int T, n, m, p;
int main() {
    scanf("%d", &T);
    while(T--){
        scanf("%d%d%d", &n, &m, &p);
        int x=m-m*(100-p)/100;
        if(n<m) puts("0"); else printf("%d\n", (n-m)/x+1);
    }
    return 0;
}