diff --git a/app/Repositories/Category/CategoryRepository.php b/app/Repositories/Category/CategoryRepository.php
index 0551c930c6..926b7f8da7 100644
--- a/app/Repositories/Category/CategoryRepository.php
+++ b/app/Repositories/Category/CategoryRepository.php
@@ -130,29 +130,6 @@ class CategoryRepository implements CategoryRepositoryInterface
         return $return;
     }
 
-    /** @noinspection MoreThanThreeArgumentsInspection */
-    /**
-     * @param Collection $categories
-     * @param Collection $accounts
-     * @param Carbon $start
-     * @param Carbon $end
-     *
-     * @return array
-     */
-    public function earnedInPeriodCollection(Collection $categories, Collection $accounts, Carbon $start, Carbon $end): array
-    {
-        /** @var GroupCollectorInterface $collector */
-        $collector = app(GroupCollectorInterface::class);
-        $collector->setUser($this->user);
-        if (0 !== $accounts->count()) {
-            $collector->setAccounts($accounts);
-        }
-
-        $collector->setRange($start, $end)->setTypes([TransactionType::DEPOSIT])->setCategories($categories);
-
-        return $collector->getExtractedJournals();
-    }
-
     /**
      * A very cryptic method name that means:
      *
@@ -660,30 +637,6 @@ class CategoryRepository implements CategoryRepositoryInterface
         return $return;
     }
 
-    /**
-     * @param Collection $categories
-     * @param Collection $accounts
-     * @param Carbon $start
-     * @param Carbon $end
-     *
-     * @return array
-     */
-    public function spentInPeriodCollection(Collection $categories, Collection $accounts, Carbon $start, Carbon $end): array
-    {
-        /** @var GroupCollectorInterface $collector */
-        $collector = app(GroupCollectorInterface::class);
-
-
-        $collector->setUser($this->user);
-        $collector->setRange($start, $end)->setTypes([TransactionType::WITHDRAWAL])->setCategories($categories);
-
-        if ($accounts->count() > 0) {
-            $collector->setAccounts($accounts);
-        }
-
-        return $collector->getExtractedJournals();
-    }
-
     /**
      * A very cryptic method name that means:
      *
diff --git a/app/Repositories/Category/CategoryRepositoryInterface.php b/app/Repositories/Category/CategoryRepositoryInterface.php
index 8a062b7194..a6eaad7bcf 100644
--- a/app/Repositories/Category/CategoryRepositoryInterface.php
+++ b/app/Repositories/Category/CategoryRepositoryInterface.php
@@ -60,20 +60,6 @@ interface CategoryRepositoryInterface
      */
     public function earnedInPeriod(Category $category, Collection $accounts, Carbon $start, Carbon $end): array;
 
-    /** @noinspection MoreThanThreeArgumentsInspection */
-
-    /**
-     * @param Collection $categories
-     * @param Collection $accounts
-     * @param Carbon     $start
-     * @param Carbon     $end
-     *
-     * @return array
-     */
-    public function earnedInPeriodCollection(Collection $categories, Collection $accounts, Carbon $start, Carbon $end): array;
-
-    /** @noinspection MoreThanThreeArgumentsInspection */
-
     /**
      * A very cryptic method name that means:
      *
@@ -218,16 +204,6 @@ interface CategoryRepositoryInterface
      */
     public function spentInPeriod(Category $category, Collection $accounts, Carbon $start, Carbon $end): array;
 
-    /**
-     * @param Collection $categories
-     * @param Collection $accounts
-     * @param Carbon     $start
-     * @param Carbon     $end
-     *
-     * @return array
-     */
-    public function spentInPeriodCollection(Collection $categories, Collection $accounts, Carbon $start, Carbon $end): array;
-
     /**
      * A very cryptic method name that means:
      *
diff --git a/app/Transformers/CategoryTransformer.php b/app/Transformers/CategoryTransformer.php
index fec2cb6141..5f771b7aae 100644
--- a/app/Transformers/CategoryTransformer.php
+++ b/app/Transformers/CategoryTransformer.php
@@ -68,8 +68,8 @@ class CategoryTransformer extends AbstractTransformer
         $start  = $this->parameters->get('start');
         $end    = $this->parameters->get('end');
         if (null !== $start && null !== $end) {
-            $spent  = $this->getSpentInformation($category, $start, $end);
-            $earned = $this->getEarnedInformation($category, $start, $end);
+            $earned = array_values($this->repository->earnedInPeriod($category, new Collection, $start, $end));
+            $spent  = array_values($this->repository->spentInPeriod($category, new Collection, $start, $end));
         }
         $data = [
             'id'         => (int)$category->id,
@@ -88,77 +88,4 @@ class CategoryTransformer extends AbstractTransformer
 
         return $data;
     }
-
-    /**
-     * @param Category $category
-     * @param Carbon   $start
-     * @param Carbon   $end
-     *
-     * @return array
-     */
-    private function getEarnedInformation(Category $category, Carbon $start, Carbon $end): array
-    {
-        $collection = $this->repository->earnedInPeriodCollection(new Collection([$category]), new Collection, $start, $end);
-        $return     = [];
-        $total      = [];
-        $currencies = [];
-        /** @var Transaction $transaction */
-        foreach ($collection as $transaction) {
-            $code = $transaction->transaction_currency_code;
-            if (!isset($currencies[$code])) {
-                $currencies[$code] = $transaction->transactionCurrency;
-            }
-            $total[$code] = isset($total[$code]) ? bcadd($total[$code], $transaction->transaction_amount) : $transaction->transaction_amount;
-        }
-        foreach ($total as $code => $earned) {
-            /** @var TransactionCurrency $currency */
-            $currency = $currencies[$code];
-            $return[] = [
-                'currency_id'             => $currency->id,
-                'currency_code'           => $code,
-                'currency_symbol'         => $currency->symbol,
-                'currency_decimal_places' => $currency->decimal_places,
-                'amount'                  => round($earned, $currency->decimal_places),
-            ];
-        }
-
-        return $return;
-    }
-
-    /**
-     * @param Category $category
-     * @param Carbon   $start
-     * @param Carbon   $end
-     *
-     * @return array
-     */
-    private function getSpentInformation(Category $category, Carbon $start, Carbon $end): array
-    {
-        $collection = $this->repository->spentInPeriodCollection(new Collection([$category]), new Collection, $start, $end);
-        $return     = [];
-        $total      = [];
-        $currencies = [];
-        /** @var Transaction $transaction */
-        foreach ($collection as $transaction) {
-            $code = $transaction->transaction_currency_code;
-            if (!isset($currencies[$code])) {
-                $currencies[$code] = $transaction->transactionCurrency;
-            }
-            $total[$code] = isset($total[$code]) ? bcadd($total[$code], $transaction->transaction_amount) : $transaction->transaction_amount;
-        }
-        foreach ($total as $code => $spent) {
-            /** @var TransactionCurrency $currency */
-            $currency = $currencies[$code];
-            $return[] = [
-                'currency_id'             => $currency->id,
-                'currency_code'           => $code,
-                'currency_symbol'         => $currency->symbol,
-                'currency_decimal_places' => $currency->decimal_places,
-                'amount'                  => round($spent, $currency->decimal_places),
-            ];
-        }
-
-        return $return;
-    }
-
 }