fix

src/main/java/cn/com/qmth/scancentral/service/impl/SubjectServiceImpl.java

@@ -230,7 +230,7 @@ public class SubjectServiceImpl extends MppServiceImpl<SubjectDao, SubjectEntity
             int totalUnScanned = studentService.getUnscannedCountByExam(examId);
             int totalCount = studentService.getCountByExam(examId);
             ret.getTotal().setStudentCount(totalCount);
-            ret.getTotal().setScannedCount(totalUnScanned-totalUnScanned);
+            ret.getTotal().setScannedCount(totalCount-totalUnScanned);
             ret.getTotal().setUnexistCount(totalUnScanned);
             ret.getTotal().setProgress(
                     Calculator.percentage(ret.getTotal().getScannedCount(), ret.getTotal().getStudentCount(), 2));