#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
#define x first
#define y second
typedef pair<int,int> pii;
typedef long long ll;
typedef unsigned long long ull;
template <typename T> void chkmax(T &x,T y){x<y?x=y:T();}
template <typename T> void chkmin(T &x,T y){x>y?x=y:T();}
template <typename T> void readint(T &x)
{
    x=0;int f=1;char c;
    for(c=getchar();!isdigit(c);c=getchar())if(c=='-')f=-1;
    for(;isdigit(c);c=getchar())x=x*10+c-'0';
    x*=f;
}
/*const int MOD=;
inline int dmy(int x){return x>=MOD?x-MOD:x;}
inline void inc(int &x,int y){x=dmy(x+y);}
int qmi(int x,int y)
{
    int ans=1;
    for(;y;y>>=1,x=1ll*x*x%MOD)
        if(y&1)ans=1ll*ans*x%MOD;
    return ans;
}*/ 

void solve()
{
    int n,m,p;
    readint(n),readint(m),readint(p);
    p=m-m*(100-p)/100;
    if(n>=m)printf("%d\n",(n-m)/p+1);
    else printf("0\n");
}

int main()
{
    #ifdef LOCAL
    freopen("code.in","r",stdin);
//    freopen("code.out","w",stdout);
    #endif
    int T;
    readint(T);
    while(T--)solve();
    return 0;
}