burhanuday_MAR18_BIGSALE

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
	int t;
	cin>>t;
	
	while(t--){
	    int n;
	    cin>>n;
	    
	    double totalLoss=0;
	    vector<double> losses;
	    
	    while(n--){
	        double p,q,d,ai,sp,loss;
	        cin>>p>>q>>d;
	        int ptr;
	        
	        ai = p + (d/100 * p);
	        sp = ai - (d/100 *ai);
	        loss = p - sp;
	        loss = loss*q;
	        losses.push_back(loss);
	    }
	    
	    for(int i=0; i<losses.size(); i++){
	        totalLoss = totalLoss + losses[i];
	    }
	    cout.precision(19);
	    cout<<totalLoss<<endl;
	    
	}
	return 0;
}