diff --git a/lib/open_food_network/reports/bulk_coop_allocation_report.rb b/lib/open_food_network/reports/bulk_coop_allocation_report.rb
index 44508627aa..2fa1e5a4e4 100644
--- a/lib/open_food_network/reports/bulk_coop_allocation_report.rb
+++ b/lib/open_food_network/reports/bulk_coop_allocation_report.rb
@@ -2,7 +2,7 @@ require 'open_food_network/reports/bulk_coop_report'
 
 module OpenFoodNetwork::Reports
   class BulkCoopAllocationReport < BulkCoopReport
-    header "Customer", "Product", "Unit Size", "Variant", "Weight", "Sum Total", "Sum Max Total", "Total Allocated", "Remainder"
+    header "Customer", "Product", "Unit Size", "Variant", "Weight", "Sum Total", "Sum Max Total", "Total Available", "Unallocated"
 
     organise do
         group { |li| li.variant.product }
@@ -16,8 +16,8 @@ module OpenFoodNetwork::Reports
           column { |lis| "" }
           column { |lis| total_amount(lis) }
           column { |lis| total_max_quantity_amount(lis) }
-          column { |lis| ( (lis.first.variant.product.group_buy_unit_size || 0).zero? ? 0 : ( lis.sum { |li| ( [li.max_quantity || 0, li.quantity || 0].max ) * (li.variant.weight || 0) } / lis.first.variant.product.group_buy_unit_size ) ).floor * (lis.first.variant.product.group_buy_unit_size || 0) }
-          column { |lis| lis.sum { |li| ( [li.max_quantity || 0, li.quantity || 0].max ) * (li.variant.weight || 0) } - ( ( (lis.first.variant.product.group_buy_unit_size || 0).zero? ? 0 : ( lis.sum { |li| ( [li.max_quantity || 0, li.quantity || 0].max ) * (li.variant.weight || 0) } / lis.first.variant.product.group_buy_unit_size ) ).floor * (lis.first.variant.product.group_buy_unit_size || 0) ) }
+          column { |lis| total_available(lis) }
+          column { |lis| remainder(lis) }
         end
 
         organise do