Hi. I uploaded my code and the excel file. I have a concern.
I want to compute for parameter YB1. To compute for the YB1, it should be the product of the corresponding Wt1 and (Db1 - Da1). But there is a condition. The computation of YB1 should start in the value where Da1 = Df1 and should end where Db1 = Df1 + B1. So based on the excel file,
Df1 = 3m, B1 = 1.2m
Since cell B9 is equals to (Df1 = 3m) and cell C10 is equals to (Df1 + B1 = 3m + 1.2m = 4.2m).
Therefore, YB1 = cell E9(cell C9 - cell B9) + cellE10(cell C10 - cell B10).
YB1 = 9(4-3) + 9.133333(4.2 - 4)
So the condition should be this, the cumulative sum of the product of Wt1 and (Db1 - Da1) should start where Da1 = Df1 and should end where Db1 = Df1 + B1.
Then the return value should be the sum of YB1. And it should be written consistently from cell G5 to cell G35. The cumulative sum will be written from cell G5:G35.
I hope someone can help me.
