The quotation column of Tongda software cannot use its own formula. You can write the formula: increase: = (c/ref (c,1)-1) *100; Three-day increase: SUM (increase, 3); After saving the formula, click "Quotation"-"Historical Quotation (Index Sorting)" at the top left of the software. After sorting historical indicators, click the right mouse button and select "Change Sorting Indicators", then select your saved three-day increase formula and confirm. After the calculation, click on the indicator name, that is, the three-day increase list and the five-day increase list. Modify the above formula, and the 3 in brackets is 5.