|  | @@ -32,6 +32,7 @@ import org.springframework.stereotype.Service;
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				|  |  |  
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				|  |  |  import javax.annotation.Resource;
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				|  |  |  import java.math.BigDecimal;
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				|  |  | +import java.math.RoundingMode;
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				|  |  |  import java.time.LocalDate;
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				|  |  |  import java.time.temporal.TemporalAdjusters;
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				|  |  |  import java.util.*;
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				|  | @@ -405,7 +406,7 @@ public class HomeServiceImpl implements HomeService {
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				|  |  |                  && practiceSummary.getPracticeCount().compareTo(BigDecimal.ZERO) > 0
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				|  |  |                  && practiceSummary.getTotalPracticeTime().compareTo(BigDecimal.ZERO) > 0){
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				|  |  |              practiceSummary.setAveragePracticeTime(practiceSummary.getTotalPracticeTime()
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				|  |  | -                    .divide(practiceSummary.getPracticeCount(), 0, BigDecimal.ROUND_HALF_UP));
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				|  |  | +                    .divide(practiceSummary.getPracticeCount(), 0, RoundingMode.DOWN));
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				|  |  |          }
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				|  |  |          teacherPracticeHome.setPracticeSummary(practiceSummary);
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