$material_sacks = $row['MaterialSacks'];
            $small_materials_sack_cost = -1;
            $medium_materials_sack_cost = -1;
            $large_materials_sack_cost = -1;
            foreach ($material_sacks as $material_desc)
            {
                if ($material_desc['Type'] == 'Small')
                {
                    $small_materials_sack_cost = $material_desc['Count'];
                }
                else if ($material_desc['Type'] == 'Medium')
                {
                    $medium_materials_sack_cost = $material_desc['Count'];
                }
                else if ($material_desc['Type'] == 'Large')
                {
                    $large_materials_sack_cost = $material_desc['Count'];
                }
            }