// Este select está perfeito
SELECT sum(sales.value_debit) AS value_debit,
       sum(sales.value_released) AS value_released,
       sum(sales.value_financed) AS value_financed,
       sum(sales.value_debit) AS value_debit,
       sum(sales.value_installment) AS value_installment,
       count(*) AS sales,
       sum(if(op.base_reports = 1, sales.value_released, 0) + if(op.base_reports = 2, sales.value_financed, 0) + if(op.base_reports = 3, sales.value_installment, 0)) AS value_base,
       `convenets`.`operation_id`
FROM `sales`
INNER JOIN `convenets` ON `convenets`.`id` = `sales`.`convenet_id`
INNER JOIN `operations` AS `op` ON `convenets`.`operation_id` = `op`.`id`
WHERE `convenets`.`deleted_at` IS NULL
  AND `convenets`.`operation_id` IN (1,2,3,4,5)
  AND `sales`.`deleted_at` IS NULL
GROUP BY `convenets`.`operation_id`


// SE EU ADICIONAR
esse INNER JOIN `convenets_receipt_settings` AS `cr` ON `convenets`.`id` = `cr`.`id`

Ele altera todos os resultados do selec anterior.