Maximise cell value using less than/ greater than in Excel

Question

I am trying to maximise a cell value by applying several less than conditions. I want to adjust the values of the four less than conditions to maximise the cell value. The values can be negative as well as positive

I had looked at using solver for this but as I couldn't find information related to less than/greater than filters assumed this was inappropriate. Below is my formula

=SUMIFS('2016-19'!$BG$2:$BG$33583, '2016-19'!$BC$2:$BC$33583, "<" & $B$84, '2016-19'!$BE$2:$BE$33583, "<" & $B$87, '2016-19'!$AU$2:$AU$33583, "<" & $B$86, '2016-19'!$BB$2:'2016-19'!$BB$33583,"<" & $B$85)

Any help would be greatly appreciated.

Edit: To be clear I need to adjust the values of B84:B87 such that this maximises the cell with this formula in (L67). By maximises I mean calculates the optimum filters such that L67 is as high as it can be. I have looked at Goal Seek and Solver to do this but can't get Solver output to work which I assume is because of the formula and goal seek as I understand requires a specific target and I can only use one cell to vary when I need to vary all 4

Answer 1

This could solve your problem:

If you have only one input variable you want to optimise for a maximum output, select Data -> What-if-analysis -> Goal Seek . Within Goal Seek, you select the input variable (eg B84 ), the maximum value you want to achieve and the output variable for which this maximum value should apply.

If you have more than one variable, you can add the Excel Data Analysis Add-in in the Excel settings to perform multiple regression analyses for multiple input variables. Hope that helps.