У меня есть таблица расходов для каждой даты, как показано ниже
I need to calculate the expected amount and expected total amount based on the charges from the first table.
I have a payment table as below where there are 2 payments in the same month. In the example below, there are 2 payments of 6 each in October, so 12 need to be added to 17 to get 29. How do I achieve that? Thank you.
введите описание изображения здесь