Build Table/Database with mathematical functions

Design a table or a database: 1- Begin operation 2- Accept input of a real, positive number, D1 3- Register time of D1 receipt, T1 4- Assign D1 a unique record identifier, ID1 5- Compare D1 to a preset constant, A 6- Register the numeric difference between A and D1 (positive or negative), Call it C1 7- Create a record (row) for ID1, T1, D1, and C1, call this record n=1 8- Accept input of another real, positive number, D2 9- Register time of D2 receipt, T2 10- Assign a unique record identifier, ID2 11- Compare D2 to a preset constant, A 12- Register the numeric difference between A and D2 (positive or negative), Call it C2 13- Create a record (row) for ID2, T2, D3, and C3, call this record n=2 14- Create a field (column) for rank, R. 15- Sort table by Descending value of D’s, 16- In the rank field, R, number each row starting with 1, so that row1, R1, has the largest D value, row 2, R2, has the secong highest D value, and so on. 17- Create a field (column) for the cumulative sum of C’s (∑Cn , where n= 1 to n) 18- Accept next input, D3 and repeat above steps until: 19- Stop accepting input when a. preset time, T, expires, or b. when n› N (N preset constant integer) for all records where ∑Cn-1 ›Cn 20- Close operation.