Thank you, tis was a great help.........for future use. But it does not quite give me what I want.

I'd like to keep the cumlative total before each update.

Using the SUMIF gives a cumlative total overall but I'd like it to work as follows

A1 - using sum if increases cumlative toal to 15.
A32 - the value will increase and give me the correct cumlative total but this will also change A1. But I want the previous cumlative total to remain in A1