Hi,
I have two columns of data, one is spend, the second is Goals achieved for that level of spend. As you can see there is no linear pattern to the goals vs spend.
Can someone give me a formula to calculate the optimal spend?
Thanks
Spend Goals [TABLE="border: 0, cellpadding: 0, cellspacing: 0"]
[TD="width: 101"]$4,220[/TD]
[TD="width: 57"]30[/TD]
$4,250
[/td]22
[/td]$4,252
[/td]7
[/td]$4,266
[/td]7
[/td]$4,334
[/td]22
[/td]$4,362
[/td]0
[/td]$4,376
[/td]4
[/td]$4,380
[/td]15
[/td]$4,381
[/td]19
[/td]$4,392
[/td]30
[/td]$4,437
[/td]22
[/td]$4,447
[/td]33
[/td]$4,465
[/td]15
[/td]$4,479
[/td]22
[/td]$4,527
[/td]4
[/td]$4,537
[/td]19
[/td]$4,544
[/td]33
[/td]$4,574
[/td]26
[/td]$4,576
[/td]19
[/td]$4,629
[/td]30
[/td]$4,634
[/td]41
[/td]$4,658
[/td]37
[/td]$4,660
[/td]19
[/td]$4,662
[/td]7
[/td]$4,665
[/td]19
[/td]$4,685
[/td]82
[/td]$4,687
[/td]26
[/td]$4,700
[/td]19
[/td]$4,704
[/td]26
[/td]$4,715
[/td]33
[/td]$4,728
[/td]15
[/td]$4,783
[/td]30
[/td]$4,795
[/td]30
[/td]$4,801
[/td]26
[/td]$4,807
[/td]56
[/td]$4,849
[/td]19
[/td]$4,859
[/td]7
[/td]$4,865
[/td]33
[/td]
[/TABLE]