It is an invoice I have 4 categories, each category has its specific sum for a whole month. These totals must be divided monthly so that all categories add up to their totals. The only catch is that there are certain daily requirements and numbers must not be exceeded. Example Day1: 786 then the categories must also be calculated in such a way that on the day exactly 786 are no less no more. and the calculation must be such that at the end of the month all categories come to their specific numbers that are given. Each day has different numbers that must be adhered too So there are 4 categories. The categories must come to their number per month divided by the days listed below. But it must not exceed the maximum per day that I indicate in the list below. For example, if Tag1: has 786 people, the number must be the same and not higher. Category 1 total monthly: 12431 Category 2 total monthly: 2726 Category 3 total monthly: 1362 Category 4 total monthly: 510 maximum person per day: ( the numbers must correspond exactly to the days as specified, not over and not less!) day 1 786 day 2 744 day 3 719 day 4 701 day 5 692 day 6 684 day 7 689 day 8 680 day 9 677 day 10 683 day 11 679 day 12 671 day 13 659 day 14 639 day 15 602 day 16 584 day 17 570 day 18 554 day 19 533 day 20 505 day 21 489 day 22 462 day 23 436 day 24 418 day 25 391 day 26 369 day 27 344 day 28 302 day 29 279 day 30 255 day 31 23