what if analysis

[#1]

Hi

I would like to know how what if analysis for the amount column  with a specific month

for e,g , if you the increase amount in Jul by another 100 , how the cumulative value should increase from Jul and at end of Sep total value should be 1070

Jul amount - 350, cumulative-750  ,890,1070

Month	Amount	Cumulative
Apr	100	100
May	100	200
Jun	200	400
Jul	250	650
Aug	140	790
Sep	180	970

Jayanthan

[maxgro]

maybe the attachment can help you