Improved the way loss is printed

trainer/src/MacaonTrain.cpp

@@ -192,7 +192,7 @@ int MacaonTrain::main()
       if (computeDevScore)
         devScoresStr += fmt::format("{}({:5.2f}{}),", score.second, score.first, computeDevScore ? "%" : "");
       else
-        devScoresStr += fmt::format("{}({:6.4f}{}),", score.second, score.first, computeDevScore ? "%" : "");
+        devScoresStr += fmt::format("{}({:6.4f}{}),", score.second, 100.0*score.first, computeDevScore ? "%" : "");
       devScoreMean += score.first;
     }
     if (!devScoresStr.empty())