diff --git a/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupDetailsDTO.java b/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupDetailsDTO.java
index 733d9e6..f95707d 100644
--- a/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupDetailsDTO.java
+++ b/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupDetailsDTO.java
@@ -2,6 +2,6 @@
 
 import java.math.BigDecimal;
 
-public record GroupDetailsDTO(Long id, String name, String description, String icon, String authorization,
+public record GroupDetailsDTO(Long id, String name, String description, String icon, String authorization, BigDecimal partial_total,
 		BigDecimal total) {
 }
diff --git a/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupMemberAuthorityDTO.java b/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupMemberAuthorityDTO.java
new file mode 100644
index 0000000..3d045d0
--- /dev/null
+++ b/backend/finboostplus_server/src/main/java/com/finboostplus/DTO/GroupMemberAuthorityDTO.java
@@ -0,0 +1,3 @@
+package com.finboostplus.DTO;
+
+public record GroupMemberAuthorityDTO(String authority){}
diff --git a/backend/finboostplus_server/src/main/java/com/finboostplus/controller/GroupController.java b/backend/finboostplus_server/src/main/java/com/finboostplus/controller/GroupController.java
index 54e2fee..c1af294 100644
--- a/backend/finboostplus_server/src/main/java/com/finboostplus/controller/GroupController.java
+++ b/backend/finboostplus_server/src/main/java/com/finboostplus/controller/GroupController.java
@@ -24,12 +24,14 @@
 import com.finboostplus.DTO.CategoryDTO;
 import com.finboostplus.DTO.GroupCreateDTO;
 import com.finboostplus.DTO.GroupDetailsDTO;
+import com.finboostplus.DTO.GroupMemberAuthorityDTO;
 import com.finboostplus.DTO.GroupMemberDTO;
 import com.finboostplus.DTO.GroupMemberResponseDTO;
 import com.finboostplus.DTO.GroupUpdateDTO;
 import com.finboostplus.DTO.SwitchAuthorityRequestDTO;
 import com.finboostplus.model.Group;
 import com.finboostplus.projection.GroupProjection;
+import com.finboostplus.repository.GroupRepository;
 import com.finboostplus.repository.UserRepository;
 import com.finboostplus.service.CategoryService;
 import com.finboostplus.service.ExpenseService;
@@ -91,6 +93,12 @@ public ResponseEntity<GroupDetailsDTO> getGroupDetails(@PathVariable Long groupI
 		return new ResponseEntity<>(dto, HttpStatus.OK);
 	}
 
+	@GetMapping("/{groupId}/members/{memberId}/authority")
+	public ResponseEntity<GroupMemberAuthorityDTO> getMemberAuthority(@PathVariable Long groupId, @PathVariable Long memberId) {
+		GroupMemberAuthorityDTO authority = groupService.getMemberAuthority(groupId, memberId);
+		return ResponseEntity.ok(authority);
+	}
+
 	@PostMapping
 	public ResponseEntity<String> createGroup(@Valid @RequestBody GroupCreateDTO dto) {
 		boolean groupIsCreated = groupService.createNewGroup(dto);
diff --git a/backend/finboostplus_server/src/main/java/com/finboostplus/projection/GroupProjection.java b/backend/finboostplus_server/src/main/java/com/finboostplus/projection/GroupProjection.java
index 0dab436..1d33eeb 100644
--- a/backend/finboostplus_server/src/main/java/com/finboostplus/projection/GroupProjection.java
+++ b/backend/finboostplus_server/src/main/java/com/finboostplus/projection/GroupProjection.java
@@ -1,9 +1,10 @@
 package com.finboostplus.projection;
 
+import java.math.BigDecimal;
 import java.time.Instant;
 
 public interface GroupProjection {
-	Long getId();
+	Long getGroupId();
 
 	String getName();
 
@@ -15,5 +16,7 @@ public interface GroupProjection {
 
 	Instant getCreatedAt();
 
-	Double getTotalExpenses();
+	BigDecimal getPartial_total();
+
+	BigDecimal getTotal();
 }
diff --git a/backend/finboostplus_server/src/main/java/com/finboostplus/repository/GroupRepository.java b/backend/finboostplus_server/src/main/java/com/finboostplus/repository/GroupRepository.java
index bcd4092..aff2ede 100644
--- a/backend/finboostplus_server/src/main/java/com/finboostplus/repository/GroupRepository.java
+++ b/backend/finboostplus_server/src/main/java/com/finboostplus/repository/GroupRepository.java
@@ -9,6 +9,7 @@
 import org.springframework.stereotype.Repository;
 
 import com.finboostplus.DTO.GroupDetailsDTO;
+import com.finboostplus.DTO.GroupMemberAuthorityDTO;
 import com.finboostplus.model.Group;
 import com.finboostplus.projection.GroupProjection;
 
@@ -16,29 +17,40 @@
 public interface GroupRepository extends JpaRepository<Group, Long> {
 	@Query(nativeQuery = true, value = """
 			SELECT
-				G.ID,
+				G.ID AS GROUP_ID,
 				G.NAME,
 				G.DESCRIPTION,
 				GM.AUTH_LEVEL AS AUTHORITY,
 				G.ICON,
 				G.CREATED_AT,
-				COALESCE(SUM(E.VALUE), 0) AS TOTAL_EXPENSES
+				COALESCE(SUM(UED.PARTIAL_VALUE), 0) AS PARTIAL_TOTAL,
+				COALESCE(SUM(E.VALUE), 0) AS TOTAL
 			FROM
 				GROUPS G
 				INNER JOIN GROUP_MEMBERS GM ON GM.GROUP_ID = G.ID
 				LEFT JOIN EXPENSES E ON E.GROUP_ID = G.ID
-			WHERE
-				GM.USER_ID = :memberId
+				AND E.STATUS != 'PAID' -- aplica filtro no join!
+				LEFT JOIN USER_EXPENSE_DIVISIONS UED ON UED.EXPENSE_ID = E.ID
+				AND UED.USER_ID = :memberId
+				AND UED.STATUS != 'PAID'
 			GROUP BY
 				G.ID,
 				G.NAME,
 				G.DESCRIPTION,
 				GM.AUTH_LEVEL,
 				G.ICON,
-				G.CREATED_AT;
+				G.CREATED_AT
 			""")
 	Page<GroupProjection> listUserGroupsPaged(Long memberId, Pageable pageable);
 
+	@Query(nativeQuery = true, value = """
+			SELECT GM.AUTH_LEVEL AS AUTHORITY
+			FROM GROUP_MEMBERS AS GM
+			WHERE GM.GROUP_ID = :groupId
+				AND GM.USER_ID = :memberId
+			""")
+	GroupMemberAuthorityDTO getMemberAuthority(Long groupId, Long memberId);
+
 	@Modifying
 	@Query(nativeQuery = true, value = """
 			DELETE FROM groups
@@ -56,12 +68,20 @@ public interface GroupRepository extends JpaRepository<Group, Long> {
 				(
 					SELECT
 						COALESCE(SUM(UED.PARTIAL_VALUE), 0)
+					FROM
+						USER_EXPENSE_DIVISIONS UED
+					WHERE
+						UED.USER_ID = :userId
+						AND UED.STATUS != 'PAID'
+				) AS PARTIAL_TOTAL,
+				(
+					SELECT
+						COALESCE(SUM(E.VALUE), 0)
 					FROM
 						EXPENSES E
-						INNER JOIN USER_EXPENSE_DIVISIONS UED ON E.ID = UED.EXPENSE_ID
 					WHERE
 						E.GROUP_ID = :groupId
-						AND UED.USER_ID = :userId
+						AND E.STATUS != 'PAID'
 				) AS TOTAL
 			FROM
 				GROUPS AS G
diff --git a/backend/finboostplus_server/src/main/java/com/finboostplus/service/GroupService.java b/backend/finboostplus_server/src/main/java/com/finboostplus/service/GroupService.java
index f9ab98e..1c4a064 100644
--- a/backend/finboostplus_server/src/main/java/com/finboostplus/service/GroupService.java
+++ b/backend/finboostplus_server/src/main/java/com/finboostplus/service/GroupService.java
@@ -12,6 +12,7 @@
 
 import com.finboostplus.DTO.GroupCreateDTO;
 import com.finboostplus.DTO.GroupDetailsDTO;
+import com.finboostplus.DTO.GroupMemberAuthorityDTO;
 import com.finboostplus.DTO.GroupMemberResponseDTO;
 import com.finboostplus.DTO.GroupUpdateDTO;
 import com.finboostplus.exception.ForbiddenResourceException;
@@ -115,6 +116,19 @@ public Group getGroup(Long idGroup) {
 		return group;
 	}
 
+	@Transactional(readOnly = true)
+	public GroupMemberAuthorityDTO getMemberAuthority(Long groupId, Long memberId) {
+		User user = userRepository
+				.findByEmailIgnoreCase(userService.authenticated())
+				.orElseThrow(() -> new UsernameNotFoundException("Usuário não encontrado!"));
+		boolean isLoggedUserMemberOfGroup = groupMemberRepository.isUserMemberOfGroup(user.getId(), groupId);
+		boolean isUserMemberOfGroup = groupMemberRepository.isUserMemberOfGroup(memberId, groupId);
+		if (isLoggedUserMemberOfGroup && isUserMemberOfGroup) {
+			return groupRepository.getMemberAuthority(groupId, memberId);
+		}
+		throw new ForbiddenResourceException("Acesso negado");
+	}
+
 	@Transactional(readOnly = true)
 	public GroupDetailsDTO getGroupDetails(Long groupId) {
 		User user = userRepository.findByEmailIgnoreCase(userService.authenticated())