I want to add B1 + A2 = B2

[kasicrypto]

I have a file with 1mil records and am trying to add the number in cell B1 to the number immediately below it in cell A2 and show the results in B2 and repeate for the rest of the records. How do I do this?



i.e.

Amount1 Amount 2
10 10
20 30
30 60 (as you can see 10 + 20 = 30, followed by 30 + 60 = 150 etc)
150 210




Thanks in advance

[Larz60+]

make an attempt, then ask question about any issues.